Choosing a natural gas meter

A direct-drive mechanical adapter kit, field- or factory-installed, that lets a separately purchased third-party residential ERT or Cellnet AMR transmitter be mounted on a Series B3 Roots meter index.

• Capacity classesnot stated
• Accuracynot stated
• Temperature rangenot stated
• Indexnot stated
• Index notePurely mechanical drive coupling; carries no index or electronics of its own.
• Correctionno correction of its own
• Hazardous locationnone stated
• Standardsnot stated
• Measurement CanadaNot stated
• Powernone (mechanical only; power depends on whichever third-party ERT/AMR module is mounted)
• Display showsnot stated
• Installnot stated
• Quantify fittotal: no route; rate: no route
• Fit noteThis is the trap case explicitly flagged for this domain: the adapter itself is a mechanical coupling, not a signal source. It exists only to accept a third-party ERT/AMR module (e.g. an Itron 100G/500G), and that module transmits proprietary RF to the gas utility's own AMR/AMI network only, there is no open pulse, Modbus, or 4-20 mA output Quantify can read from this path. For a usable signal off a Roots meter, use the IMC/W2 corrector or a Series 3 solid-state pulser instead.

Available as a field conversion kit or factory-installed on new Series B3 CTR/TC meters.

Output signals

No wired output on the base meter. This is the trap case explicitly flagged for this domain: the adapter itself is a mechanical coupling, not a signal source. It exists only to accept a third-party ERT/AMR module (e.g. an Itron 100G/500G), and that module transmits proprietary RF to the gas utility's own AMR/AMI network only, there is no open pulse, Modbus, or 4-20 mA output Quantify can read from this path. For a usable signal off a Roots meter, use the IMC/W2 corrector or a Series 3 solid-state pulser instead.

Price band $ (under a few hundred dollars)

Where to buy not stated

Product page · Datasheet

Battery-powered intrinsically-safe pulse isolator/barrier that sits in the SAFE area and provides the certified isolation boundary between a hazardous-area gas meter/corrector pulse and non-intrinsically-safe equipment (a logger, BMS or AMR device): this is Quantify's IS barrier example for a gas pulser installation.

• Capacity classesnot stated
• Accuracynot stated
• Temperature rangenot stated
• Indexnot stated
• Correctionno correction of its own
• Hazardous locationEx ia Ga IIC: Baseefa 03ATEX0429, BAS21UKEX0072; must be installed in the SAFE area, suitable for connection to equipment in hazardous Zone 0, 1 or 2
• StandardsATEX, UKEX, IGEM/GM/7A, NEC Article 500 (ANSI/NFPA-70)
• Measurement CanadaNot stated
• Power2 × Tadiran SL750 (1/2 AA) lithium cells; >10 years typical at all 4 channels active <1 Hz (up to ~12.7 years at 1 active channel per the manufacturer's battery-life chart)
• Display showsprogrammable
• Installwall or panel mount, safe area only, no filter stated
• Quantify fittotal: pulse; rate: no route
• Fit noteNot a metering device: it relays whatever pulse it receives. This is the piece that lets Quantify's own (non-IS) LoRaWAN pulse counter connect downstream of a hazardous-area pulser/corrector without itself needing hazardous-location certification, PROVIDED the meter set location is in fact classified, see research/signals.md §a for the open question on whether a given outdoor meter set is classified at all.

Weatherproof cast-aluminium enclosure IP66 (~NEMA 4X), 160 x 120 x 62 mm; opto-isolation; push-to-test LED confirms channel wiring; no corrector or meter setting required.

Output signals

Price band $$ (hundreds to about $1,500)

Where to buy not stated

Dresser Utility Solutions (Natural Gas Solutions UK Ltd.).

Product page · Datasheet · Manual

Electronic gas volume converter for commercial and industrial rotary-meter installations; measures pressure and temperature at the meter to output corrected consumption, with a modular I/O bay for expansion.

• Capacity classesnot stated
• Accuracy0.3% (optional/certified accuracy class stated on product page)
• Temperature rangenot stated
• Indexnot stated
• Correctionno correction of its own
• Hazardous locationATEX certified; IECEx certified (product & factory certificates listed on the product page; specific zone/group code not captured in this pass)
• StandardsATEX, IECEx, MID
• Measurement CanadaNot stated
• Powernot stated
• Display showstotal, programmable
• Installdirect-mount on rotary meter, no filter stated
• Quantify fittotal: corrected volume over Modbus; rate: 4-20 mA
• Fit notePage claims both Modbus and 4-20 mA; treat as unconfirmed until a full datasheet with a register map is obtained: flagged as a gap in research/signals.md.

Modular design with up to 6 expansion slots for external power supplies and communication ports; anti-tamper and encrypted-communication features advertised.

Output signals

Price band $$$ (about $1,500 to $5,000)

Where to buy not stated

Sold through Dresser Utility Solutions; this product line traces back to Actaris/Schlumberger's Corus brand (also referenced under Itron after Itron acquired Actaris): current Corus ownership/support channel not fully reconciled in this pass.

Product page

An integral electronic gas volume corrector (temperature, pressure and/or supercompressibility) that mounts to a Dresser Series-A (LMMA), Series-B, or Romet rotary meter body, sold factory-integral or as a retrofit kit.

• Capacity classesnot stated
• AccuracyMeter (pickup) accuracy error less than ±1.0%; volume-correction accuracy 0.5% (PTZ), 0.45% (P), 0.2% (T) of corrected volume across the operating temperature range
• Temperature range-40 to 60 °C
• Indexelectronic, reads in ft³, m³
• Index pulse weightsconfigurable pulse width: 62.5, 125, 187 or 312 ms per pulse
• Index noteResolution 0.01 ft³ (0.01 m³) volume, 0.01 psi (1 mbar) pressure, 0.1°F (0.1°C) temperature.
• Correctionno correction of its own, works with Dresser Series B3, dresser-lmma-series-a (legacy, no current standalone product page found), romet
• Hazardous locationClass I, Division 1, Groups A, B, C, D; Ex ia IIC (Class I, Zone 0 / Class I, Division 1): CSA Approval No. 1224451
• StandardsFCC 47 CFR Part 15, Subpart B (EMC), CSA, EN 61000-4-2/-3
• Measurement CanadaNot stated
• PowerSealed lithium battery pack (P/N 060587-000), 15-year nominal life
• Display showsrate, total, programmable, pulse divider
• Installintegral direct-mount (magnetic pickup in meter magnet cup) or retrofit kit, no filter stated
• Quantify fittotal: corrected volume as pulses; rate: derived from pulses
• Fit noteThis is exactly Quantify's top-preference route for gas: corrector output (corrected volume) on pulse, read by a LoRaWAN pulse counter. No Modbus on this base IMC/W2, Dresser's newer Corus Evo+ corrector adds Modbus RTU/TCP but is a European, MID-certified product with no Measurement Canada or CSA approval found; treat it as not currently confirmed for the Canadian market.

Ordered as an integral part of a new meter or as a field-conversion kit for existing Series-A (LMMA), Series-B (TQM), or Romet meters. Series-A meters and the 23M-56M/high-pressure sizes require an external pressure sensor connection; optional stainless piping kits are sold for this.

Output signals

Price band $$$ (about $1,500 to $5,000)

Where to buy not stated

Same as the parent Series B3 meter: no dedicated Canadian office or distributor found on Dresser Utility Solutions' own site (checked 2026-09-03).

Product page · Datasheet · Manual

Our pick Quantify's first-choice route in one box: three fully programmable solid-state pulse channels, one of them corrected volume straight to a pulse counter, with pulse widths selectable at 62.5, 125, 187 or 312 ms so the signal can be matched to the logger. It picks the volume off the meter's own drive magnet and retrofits to Dresser Series-A, Series-B and Romet rotary bodies, on a sealed lithium pack rated for 15 years, with Class I Division 1 Groups A to D under CSA approval 1224451. There is no Modbus on this unit, the fact sheet we read states none, and Measurement Canada approval is not stated, so confirm both before you specify it for a billing point.

Encapsulated reed-switch pulser that fits a dedicated port in a Roots® rotary Series B gas meter index, giving a normally-open, magnetically-actuated dry contact for a corrector or logger.

• Capacity classesnot stated
• Accuracynot stated
• Temperature range-20 to 80 °C
• Indexnot stated
• Correctionno correction of its own, works with dresser-197-ptz-log, Dresser Chatterbox-e LED (Model 123)
• Hazardous locationPassive design, classed as simple apparatus per EN 60079-11; meets UK IGEM/GM/7A (IGEM guidance: 2.5–5 V, ≤1 mA)
• StandardsEN 60079-11, IGEM/GM/7A
• Measurement CanadaNot stated
• PowerNone: passive dry contact, powered by the reading device
• Display showsnot stated
• Installfits left or right dedicated port in the Roots® Rotary Displacement B Series meter index counter, held by a set screw, no filter stated
• Quantify fittotal: an index pulser on the meter; rate: derived from pulses
• Fit noteBecause it's certified 'simple apparatus' per EN 60079-11, it can be wired into a hazardous area without its own IS barrier as long as everything downstream to the safe area is a certified IS circuit (e.g. through a Chatterbox-e-type isolator): the barrier requirement moves to the boundary crossing, not this device itself.

Two-wire, non-polarity-sensitive connection; drill holes for lock-wire sealing.

Output signals

Price band $ (under a few hundred dollars)

Where to buy not stated

Dresser Utility Solutions (Natural Gas Solutions UK Ltd. is the listed manufacturer entity).

Product page · Datasheet

Dresser's current line-mount positive-displacement rotary meter for commercial and industrial gas measurement, 13 sizes from 800 to 56,000 ACFH sharing a common ANSI-flanged, oil-free Series 3 accessory platform.

• Capacity classes8C175 800 CFH (22.6 m³/h), rated at fixed actual (index) rating, max inlet 175 psig, start flow 2.8 CFH, accuracy floor 30.77 CFH, turndown 26:1, 2, ANSI 150# FF flanged Source Dresser's Series B3 catalogue publishes this class as acfh - the meter's fixed actual (index) capacity, the same number at any pressure. The 0.5 in W.C. figure beside it is the pressure DROP across the meter at that flow, not the pressure it is fed at.
  11C175 1100 CFH (31 m³/h), rated at fixed actual (index) rating, max inlet 175 psig, start flow 2.3 CFH, accuracy floor 35.48 CFH, turndown 31:1, 2, ANSI 150# FF flanged Source Dresser's Series B3 catalogue publishes this class as acfh - the meter's fixed actual (index) capacity, the same number at any pressure. The 0.6 in W.C. figure beside it is the pressure DROP across the meter at that flow, not the pressure it is fed at.
  15C175 1500 CFH (42.5 m³/h), rated at fixed actual (index) rating, max inlet 175 psig, start flow 1.9 CFH, accuracy floor 37.5 CFH, turndown 40:1, 2, ANSI 150# FF flanged Source Dresser's Series B3 catalogue publishes this class as acfh - the meter's fixed actual (index) capacity, the same number at any pressure. The 0.8 in W.C. figure beside it is the pressure DROP across the meter at that flow, not the pressure it is fed at.
  2M175 2000 CFH (56.6 m³/h), rated at fixed actual (index) rating, max inlet 175 psig, start flow 1.01 CFH, accuracy floor 29.41 CFH, turndown 68:1, 2, ANSI 150# FF flanged Source Dresser's Series B3 catalogue publishes this class as acfh - the meter's fixed actual (index) capacity, the same number at any pressure. The 0.7 in W.C. figure beside it is the pressure DROP across the meter at that flow, not the pressure it is fed at.
  3M175 3000 CFH (85 m³/h), rated at fixed actual (index) rating, max inlet 175 psig, start flow 2.1 CFH, accuracy floor 39.47 CFH, turndown 76:1, 2, ANSI 150# FF flanged Source Dresser's Series B3 catalogue publishes this class as acfh - the meter's fixed actual (index) capacity, the same number at any pressure. The 1.1 in W.C. figure beside it is the pressure DROP across the meter at that flow, not the pressure it is fed at.
  5M175 5000 CFH (141.5 m³/h), rated at fixed actual (index) rating, max inlet 175 psig, start flow 1.2 CFH, accuracy floor 41.67 CFH, turndown 120:1, 3, ANSI 150# FF flanged Source Dresser's Series B3 catalogue publishes this class as acfh - the meter's fixed actual (index) capacity, the same number at any pressure. The 1.1 in W.C. figure beside it is the pressure DROP across the meter at that flow, not the pressure it is fed at.
  7M175 7000 CFH (200 m³/h), rated at fixed actual (index) rating, max inlet 175 psig, start flow 5.3 CFH, accuracy floor 104.48 CFH, turndown 67:1, 3, ANSI 150# FF flanged Source Dresser's Series B3 catalogue publishes this class as acfh - the meter's fixed actual (index) capacity, the same number at any pressure. The 1.6 in W.C. figure beside it is the pressure DROP across the meter at that flow, not the pressure it is fed at.
  11M175 11000 CFH (310 m³/h), rated at fixed actual (index) rating, max inlet 175 psig, start flow 3.9 CFH, accuracy floor 88.71 CFH, turndown 124:1, 4, ANSI 150# FF flanged Source Dresser's Series B3 catalogue publishes this class as acfh - the meter's fixed actual (index) capacity, the same number at any pressure. The 1.6 in W.C. figure beside it is the pressure DROP across the meter at that flow, not the pressure it is fed at.
  16M175 16000 CFH (450 m³/h), rated at fixed actual (index) rating, max inlet 175 psig, start flow 3.2 CFH, accuracy floor 137.93 CFH, turndown 116:1, 4, ANSI 150# FF flanged Source Dresser's Series B3 catalogue publishes this class as acfh - the meter's fixed actual (index) capacity, the same number at any pressure. The 2.1 in W.C. figure beside it is the pressure DROP across the meter at that flow, not the pressure it is fed at.
  23M175 23000 CFH (650 m³/h), rated at fixed actual (index) rating, max inlet 175 psig, start flow 23 CFH, accuracy floor 575 CFH, turndown 40:1, 6, ANSI 150# FF flanged Source Dresser's Series B3 catalogue publishes this class as acfh - the meter's fixed actual (index) capacity, the same number at any pressure. The 1.3 in W.C. figure beside it is the pressure DROP across the meter at that flow, not the pressure it is fed at.
  23M232 23000 CFH (650 m³/h), rated at fixed actual (index) rating, max inlet 232 psig, start flow 10.33 CFH, accuracy floor 136.09 CFH, turndown 169:1, 4, ANSI 150# FF flanged Source Dresser's Series B3 catalogue publishes this class as acfh - the meter's fixed actual (index) capacity, the same number at any pressure. The 2.08 in W.C. figure beside it is the pressure DROP across the meter at that flow, not the pressure it is fed at.
  38M175 38000 CFH (1050 m³/h), rated at fixed actual (index) rating, max inlet 175 psig, start flow 27 CFH, accuracy floor 422.22 CFH, turndown 90:1, 6, ANSI 150# FF flanged Source Dresser's Series B3 catalogue publishes this class as acfh - the meter's fixed actual (index) capacity, the same number at any pressure. The 1.9 in W.C. figure beside it is the pressure DROP across the meter at that flow, not the pressure it is fed at.
  56M175 56000 CFH (1575 m³/h), rated at fixed actual (index) rating, max inlet 175 psig, start flow 40 CFH, accuracy floor 1056.6 CFH, turndown 53:1, 8, ANSI 150# FF flanged Source Dresser's Series B3 catalogue publishes this class as acfh - the meter's fixed actual (index) capacity, the same number at any pressure. The 2.2 in W.C. figure beside it is the pressure DROP across the meter at that flow, not the pressure it is fed at.
• Accuracy±1% maintained across the stated rangeability (turndown) ratio for each size
• Temperature range-40 to 60 °C
• Indexmechanical, reads in ft³, m³, multiplier x1 (CTR/CD: 10 or 100 cf/rev by size; TC/TD variants use a higher drive rate)
• Index noteBase index is a non-compensated (CTR) or temperature-compensated (TC) mechanical counter; drive rate 10 cf/rev (8C-3M), 100 cf/rev (5M-16M), 100-1000 cf/rev on larger sizes per the Series B3 brochure.
• Correctionno correction of its own, works with Dresser IMC/W2
• Hazardous locationnone stated for the base mechanical meter body; see dresser-imcw2 for the hazardous-location rating of the electronic corrector accessory
• StandardsANSI B109.3
• Measurement CanadaNot stated
• Powernone required for the mechanical meter body; electronic accessories (pulser, IMC/W2) are separately battery-powered
• Display showstotal
• Installside inlet or top inlet (oil capacity differs by orientation, per datasheet)
• Quantify fittotal: corrected volume as pulses; rate: derived from pulses
• Fit noteBase mechanical index gives no signal on its own. Add the IMC/W2 corrector (pulse output) or a Series 3 solid-state pulser to get a signal Quantify can read; do not confuse the AMR Adapter option with a usable output: it only feeds a proprietary utility AMR module.

Sizes 8C through 3M share a 2" ANSI 150# flange and 6-3/4" flange-to-flange dimension, allowing meter exchange without re-piping as load changes. Not stated: strainer/filter requirement.

Output signals

Price band $$$ (about $1,500 to $5,000)

Where to buy not stated

No Canadian office, subsidiary or distributor is listed on Dresser Utility Solutions' own contact page (checked 2026-09-03); the company's listed offices are all in the US, Germany, France, the UK, the UAE and China. Canadian buyers likely source through general industrial/utility-supply distributors rather than a dedicated Dresser Canada channel: not confirmed.

Product page · Datasheet · Manual

Self-generating Wiegand-effect pulser that fits a dedicated port in a Roots® rotary Series B gas meter index; the Wiegand coil produces its own electrical pulse from the sweeping magnet, needing no external excitation power.

• Capacity classesnot stated
• Accuracynot stated
• Temperature range-20 to 60 °C
• Indexnot stated
• Correctionno correction of its own, works with dresser-mc2-197-ptz, Dresser Chatterbox-e LED (Model 123)
• Hazardous locationATEX/UKEX Ex ia IIC T4 Ga, -20°C ≤ Tamb ≤ 60°C; EU cert Baseefa17ATEX0043X, UK cert BAS21UKEX0073X; entity parameters Ui=25V, Pi=180mW, Ci=13.5nF, Li=20mH; meets UK IGEM/GM/7A
• StandardsATEX, UKEX, IGEM/GM/7A, Directive 2014/32/EU
• Measurement CanadaNot stated
• PowerNone: self-generating (Wiegand effect); no battery or external excitation required
• Display showsnot stated
• Installfits left or right dedicated port in the Roots® Rotary Displacement B Series meter index counter, finger-tight set screw, no filter stated
• Quantify fittotal: an index pulser on the meter; rate: derived from pulses
• Fit noteThis is the clean, sourced example of a pulser that IS intrinsically safe and IS certified for hazardous-area circuits, with published entity parameters (Ui/Pi/Ci/Li): confirms the charter should say pulsers CAN be IS-rated, not that they're all simple apparatus like the Reed version.

Two-wire connection, correct polarity required (unlike the Reed version); drill holes for lock-wire sealing.

Output signals

Price band $ (under a few hundred dollars)

Where to buy not stated

Dresser Utility Solutions (Natural Gas Solutions UK Ltd. is the listed manufacturer entity).

Product page · Datasheet

Eldridge Products (EPI) builds customer-configured thermal mass flow meters in GEN (ordinary/general-location) and HAZ (explosion-proof) families, each available inline or insertion, with optional remote electronics (R) or Flow Averaging Tube (FAT) probes. EPI's site is a JavaScript configurator/quote tool -- flow-range tables, accuracy, pressure ratings and outputs are not exposed as static page content, so most numeric fields below are null pending a direct spec sheet from EPI or a rep.

• Capacity classesinline, 1/4in-4in line size capacity not stated, 1/4 to 4, inline Source Line-size range is the only hard number the site's fetched content exposed; no flow/accuracy/pressure table was retrievable.
  insertion, 1.5in minimum capacity not stated, 1.5 and up, insertion Source Minimum insertion line size stated; no further specs retrievable from the site's fetched content.
• Accuracynot stated
• Temperature rangenot stated
• Indexnot stated
• Correctionno correction of its own
• Hazardous locationHAZ series: CSA/CUS Class 2252-03 & 2252-80; ATEX, IECEx, KOSHA mentioned on the site (specific zone/division codes not exposed to the fetch tool). GEN series: ordinary/general locations, corrosion-resistant watertight enclosure.
• Standardsnot stated
• Measurement CanadaNot stated
• Powernot stated
• Display showsnot stated
• Installnot stated
• Quantify fittotal: not established; rate: not established
• Fit noteEPI's meter customizer implies configurable 4-20mA/pulse/Modbus outputs typical of this instrument class, but nothing was confirmed on the pages the fetch tool could read -- do not quote outputs to a client without a spec sheet in hand.

Stainless steel wetted materials standard, optional Hastelloy C-276. FAT (Flow Averaging Tube) variant available for limited-straight-run installs. Full install/straight-run guidance not retrievable from the site's fetched content this pass.

Output signals

No wired output on the base meter. EPI's meter customizer implies configurable 4-20mA/pulse/Modbus outputs typical of this instrument class, but nothing was confirmed on the pages the fetch tool could read -- do not quote outputs to a client without a spec sheet in hand.

Price band not stated

Where to buy not stated

EPI's site has a 'Find A Rep' tool; no Canadian rep name was returned to the fetch tool this pass. Recommend a direct call/email to EPI to confirm Canadian distribution before quoting a client.

Product page

Emerson's Micro Motion Coriolis meters measure true mass flow directly (no separate density/composition correction needed) and are marketed across liquids, gases and slurries -- but the product families found (ELITE, F-Series, G-Series, H-Series, T-Series) are general process meters, not natural-gas-specific submeters. Coriolis sensors carry meaningfully higher pressure drop and unit cost than a thermal-mass or turbine meter of the same line size, which is why they show up in custody-transfer and high-value fiscal gas measurement far more often than as a simple facility branch sub-meter -- for a plant's internal gas sub-metering, a thermal-mass unit (Fox/Sierra/Sage/E+H above) or a rotary/turbine meter is almost always the more economical fit.

• Capacity classesnot stated
• Accuracynot stated
• Temperature rangenot stated
• Indexnot stated
• Correctionno correction of its own
• Hazardous locationnot stated
• Standardsnot stated
• Measurement CanadaNot stated
• Powernot stated
• Display showsnot stated
• Installnot stated
• Quantify fittotal: not established; rate: not established
• Fit noteNot recommended as Quantify's default gas sub-meter pick given cost and pressure drop for a typical branch-line application; include on the page mainly to explain WHY it's usually not the answer, per Tom's brief.

No straight-run requirement in the usual sense (Coriolis tubes don't need it the way inferential meters do), but the sensor housing itself is bulkier and heavier than an inline thermal-mass body of the same size, and pressure drop through the folded/curved tube geometry is materially higher -- both drive up installed cost on a low-pressure branch line.

Output signals

No wired output on the base meter. Not recommended as Quantify's default gas sub-meter pick given cost and pressure drop for a typical branch-line application; include on the page mainly to explain WHY it's usually not the answer, per Tom's brief.

Price band $$$$ ($5,000 and up)

Where to buy not stated

Emerson/Micro Motion is a large multinational with Canadian sales offices; a specific Canadian rep contact was not retrieved this pass (the product page fetched did not carry distributor information).

Product page

Inline thermal mass flow meter, DN15-DN100 (1/2in-4in), with a compact dual-compartment transmitter and a library of 21 preset gases; the datasheet reports flow in kg/h (mass units) rather than SCFM/m³/h, worth flagging since every other meter in this guide is specified volumetrically.

• Capacity classesDN15-DN100 (1/2in-4in) capacity not stated, max inlet 40 barg, 1/2 to 4, flanged or threaded Source Datasheet states the measuring range as 0.5 to 3750 kg/h (1.1 to 8250 lb/h) -- a MASS flow figure, not SCFM/m³/h. Converting to a volumetric SCFM figure needs the specific gas density and was not attempted (would require an assumption not in the source); ratedCFH/ratedM3h left null. This is a genuine difference from the Fox/Sierra/Sage lines above, which all report SCFM/NM3/hr. Flange rating PN40 / Class 300 / 20K.
• AccuracyGas: 1.0% o.r. (10-100% o.f.s.), 0.1% o.f.s. (1-10% o.f.s.)
• Temperature range-40 to 180 °C
• Indexnot stated
• Correctionno correction of its own
• Hazardous locationATEX, cCSAus, IECEx, NEPSI, UKEX, EAC, KC
• StandardsPED, CRN
• Measurement CanadaNot approved
• Power24VDC or 100-240VAC
• Display showsrate, total, programmable
• Installinline, no filter stated
• Quantify fittotal: pulse; rate: 4-20 mA
• Fit note4-20mA/HART for rate, pulse or Modbus RS485 for total, same as the rest of the guide -- but remember E+H specifies flow in kg/h, so any comparison to the SCFM/m3h meters needs a density conversion, ideally sourced from the same datasheet's gas table rather than assumed.

Straight-run distances not stated on the product overview page (in the TI01500DEN datasheet, not fetched in full this pass). SIL 2 rated, bidirectional with reverse-flow detection, Heartbeat Technology self-verification.

Output signals

Price band $$$$ ($5,000 and up)

Where to buy endress-hauser-canada

Endress+Hauser Canada Ltd. head office: 1244 International Blvd., Burlington, ON L7L 0K2; branches in Montreal QC, Calgary AB, Edmonton AB (source: E+H Canada 'at a glance' page, retrieved 2026-09-03). Public list pricing not shown; 'price on request', login required for E+H's own customer portal pricing.

Product page · Datasheet

Insertion thermal mass flow meter, DN80 up to DN1500 (3in-60in), remote transmitter version with up to 4 I/Os; sized more for a plant main or large branch than a small 1-2in sub-meter tap.

• Capacity classesDN80-DN1500 (3in-60in) capacity not stated, max inlet 20 barg, 3 to 60, insertion, circular pipe or rectangular duct Source Datasheet states 20 to 733,501 kg/h -- again a MASS flow figure; no SCFM/m3h table on this page, so ratedCFH/ratedM3h left null rather than converted without a stated gas density. Stated range -0.5 to 20 barg.
• AccuracyGas: 1.0% o.r. (10-100% o.f.s.), 0.1% o.f.s. (1-10% o.f.s.)
• Temperature range-40 to 180 °C
• Indexnot stated
• Correctionno correction of its own
• Hazardous locationATEX, cCSAus, IECEx, NEPSI, UKEX, EAC, KC; IP66/67 Type 4X standard, optional IP68/Type 6P sensor
• Standardsnot stated
• Measurement CanadaNot approved
• Power24VDC or 100-240VAC
• Display showsrate, total, programmable
• Installinsertion, perpendicular to pipe/duct axis, no filter stated
• Quantify fittotal: pulse; rate: 4-20 mA
• Fit noteSame read routes as F300; pick I500 only when the branch is 3in or larger -- undersized for most 1-2in customer sub-meter taps.

SIL 2 rated, bidirectional with reverse-flow detection; sized for pipe/duct 3in and up, i.e. a plant main or large branch rather than a 1-2in sub-meter tap.

Output signals

Price band $$$$ ($5,000 and up)

Where to buy endress-hauser-canada

Same Canadian organization as t-mass F300 (Burlington ON head office).

Product page · Datasheet

Entry-level single-point insertion thermal mass flow meter with field-selectable gas library (Gas-SelectX); sized for customer-installed branch monitoring rather than utility billing.

• Capacity classes1.5" insertion 21240 CFH (558 m³/h), rated at standard (already corrected) flow, max inlet 740 psig, accuracy floor 21.24 CFH · 212.4 CFH, turndown up to 1000:1; 100:1 typical, 1-1/2, compression, 3/4" female coupling Source 0-354 SCFM stated for this pipe size; pressure/temperature basis not restated on this page (Fox Thermal's other FT-series pages state 'air at 70F & 1 ATM' for the same SFPM velocity range -- unconfirmed for FT1 specifically). SCFM is a STANDARD (corrected) flow by definition and a thermal-mass meter reads mass directly, so this rating is compared against the standard flow a load needs, with no delivery-pressure factor applied to it.
  3" insertion 76800 CFH (2020 m³/h), rated at standard (already corrected) flow, max inlet 740 psig, accuracy floor 76.8 CFH · 768 CFH, turndown up to 1000:1; 100:1 typical, 3, compression, 3/4" female coupling Source 0-1,280 SCFM stated for this pipe size. SCFM is a STANDARD (corrected) flow by definition and a thermal-mass meter reads mass directly, so this rating is compared against the standard flow a load needs, with no delivery-pressure factor applied to it.
  6" insertion 300600 CFH (7910 m³/h), rated at standard (already corrected) flow, max inlet 740 psig, accuracy floor 300.6 CFH · 3006 CFH, turndown up to 1000:1; 100:1 typical, 6, compression, 3/4" female coupling Source 0-5,010 SCFM stated for this pipe size. SCFM is a STANDARD (corrected) flow by definition and a thermal-mass meter reads mass directly, so this rating is compared against the standard flow a load needs, with no delivery-pressure factor applied to it.
• AccuracyAir: ±1% of reading ±0.2% of full scale; other gases: ±1.5% of reading ±0.5% of full scale; repeatability ±0.2% of full scale
• Temperature range-40 to 121 °C
• Indexnot stated
• Correctionno correction of its own
• Hazardous locationFM/FMc Class I Div 1 Groups B,C,D; Class II Div 1 Groups E,F,G; Class III Div 1; ATEX/IECEx II 2 G Ex db IIB+H2 T4, Ta -40 to 70C, IP66/67
• Standardsnot stated
• Measurement CanadaNot approved
• Power12 to 24 VDC (10-30VDC range), 6W; recommended 20W+ supply
• Display showsrate, total, programmable
• Installinsertion probe perpendicular to pipe axis, straight run 15 D upstream, 10 D downstream, no filter stated
• Quantify fittotal: pulse; rate: 4-20 mA
• Fit note4-20mA for rate plus pulse or Modbus RTU for totalized volume; entry-level of the Fox family, still needs a hazloc-rated install for natural gas service.

8D up / 4D down for inline-style connection variant; hazardous-area (natural gas) install requires a licensed gas technician per local code.

Output signals

Price band $$$ (about $1,500 to $5,000)

Where to buy not stated

No Canadian distributor confirmed on the manufacturer site during this pass; Fox Thermal sells via a rep-locator network (rep-locator tool did not return names to the fetch tool).

Product page · Datasheet · Manual

Mid-range insertion (and inline-connectable) thermal mass flow meter with a wider digital-communications option set than the FT1; good candidate for a branch sub-meter feeding a BMS or data logger.

• Capacity classes1.5" insertion 50400 CFH (1325 m³/h), rated at standard (already corrected) flow, max inlet 500 psig, accuracy floor 50.4 CFH · 504 CFH, turndown up to 1000:1; 100:1 typical, 1-1/2, compression, 3/4" female coupling Source 0-840 SCFM at pipe ID, air at 70F & 1 ATM per datasheet. SCFM is a STANDARD (corrected) flow by definition and a thermal-mass meter reads mass directly, so this rating is compared against the standard flow a load needs, with no delivery-pressure factor applied to it.
  3" insertion 186000 CFH (4890 m³/h), rated at standard (already corrected) flow, max inlet 500 psig, accuracy floor 186 CFH · 1860 CFH, turndown up to 1000:1; 100:1 typical, 3, compression, 3/4" female coupling Source 0-3,100 SCFM, air at 70F & 1 ATM. SCFM is a STANDARD (corrected) flow by definition and a thermal-mass meter reads mass directly, so this rating is compared against the standard flow a load needs, with no delivery-pressure factor applied to it.
  6" insertion 720000 CFH (18930 m³/h), rated at standard (already corrected) flow, max inlet 500 psig, accuracy floor 720 CFH · 7200 CFH, turndown up to 1000:1; 100:1 typical, 6, compression, 3/4" female coupling Source 0-12,000 SCFM, air at 70F & 1 ATM. SCFM is a STANDARD (corrected) flow by definition and a thermal-mass meter reads mass directly, so this rating is compared against the standard flow a load needs, with no delivery-pressure factor applied to it.
  12" insertion 2796000 CFH (73500 m³/h), rated at standard (already corrected) flow, max inlet 500 psig, accuracy floor 2796 CFH · 27960 CFH, turndown up to 1000:1; 100:1 typical, 12, compression, 3/4" female coupling Source 0-46,600 SCFM, air at 70F & 1 ATM; larger than a typical branch-line install. SCFM is a STANDARD (corrected) flow by definition and a thermal-mass meter reads mass directly, so this rating is compared against the standard flow a load needs, with no delivery-pressure factor applied to it.
• Accuracy±1% of reading ±0.2% of full scale (repeatability ±0.2% of full scale)
• Temperature range-40 to 343 °C
• Indexnot stated
• Correctionno correction of its own
• Hazardous locationFM/FMc Class I, II, III Div 2, Groups A-G, T4A
• Standardsnot stated
• Measurement CanadaNot approved
• Power24VDC ±10% (0.4-0.7A) or 100-240VAC 50-60Hz (0.2A)
• Display showsrate, total, programmable
• Installinsertion perpendicular to pipe / inline in run, straight run 15 D upstream, 10 D downstream, no filter stated
• Quantify fittotal: pulse; rate: 4-20 mA
• Fit noteSame read routes as FT1 with more fieldbus options (BACnet, Modbus TCP via gateway) if the site already has a building network.

Inline connection style needs 8D up / 4D down; Div 2 (not Div 1) hazloc rating -- check against the specific hazardous-area classification of the meter room before ordering.

Output signals

Price band $$$ (about $1,500 to $5,000)

Where to buy not stated

Not confirmed; contact Fox Thermal (sales@foxthermal.com) for a Canadian rep.

Product page · Datasheet · Manual

Fox Thermal's mid-tier meter with a high-temperature sensor option (ST/HT); flow range and accuracy match the FT2A/FT4 platform but the product page does not publish a per-pipe-size SCFM table.

• Capacity classesinsertion, 3/4" female coupling capacity not stated, rated at 60000 SFPM velocity limit, not a flow, max inlet 500 psig, turndown up to 1000:1; 100:1 typical, compression, 3/4" female coupling Source Velocity range 15-60,000 SFPM (0.07-280 NMPS), air at 70F(20C) & 1 ATM. No per-pipe-size SCFM table published on this page; SCFM depends on the customer's pipe ID and was not stated, so ratedCFH/ratedM3h are left null rather than calculated.
• Accuracy±1% of reading ±0.2% of full scale; repeatability ±0.2% of full scale
• Temperature range-40 to 343 °C
• Indexnot stated
• Correctionno correction of its own
• Hazardous locationFM/FMc Class I Div 1 Groups B,C,D; Class II Div 1 Groups E,F,G; Class III Div 1; ATEX II 2 G Ex db IIB+H2 / II 2 D Ex tb IIIC; IECEx certified
• Standardsnot stated
• Measurement CanadaNot approved
• Power24VDC ±10%, 0.7A, or 100-240VAC 50-60Hz, 0.2A
• Display showsrate, total, programmable
• Installinsertion perpendicular to pipe / inline in run, straight run 15 D upstream, 10 D downstream, no filter stated
• Quantify fittotal: pulse; rate: 4-20 mA
• Fit noteSame output routes as the rest of the FT family; pick FT3 over FT2A only if the HT (650F) sensor is needed.

8D up / 4D down for inline style. HT sensor option extends process temperature to 650F (343C) for hot process gas lines.

Output signals

Price band $$$ (about $1,500 to $5,000)

Where to buy not stated

Not confirmed; contact Fox Thermal directly.

Product page · Datasheet · Manual

Base electronics of Fox Thermal's current-generation FT4 platform (DDC-Sensor); insertion probes to 70" or inline NPT/flanged bodies to 6", positioned for a branch-line sub-meter with HART or Modbus available.

• Capacity classesinsertion probe, 1.5"-70" pipe capacity not stated, rated at 60000 SFPM velocity limit, not a flow, max inlet 740 psig, turndown up to 1000:1; 100:1 typical, insertion, compression fitting Source 15-60,000 SFPM (0.07-283 NMPS) velocity range stated; no per-pipe-size SCFM table on this page so ratedCFH/ratedM3h left null (depends on installed pipe ID).
  inline NPT, 3/4"-3" capacity not stated, max inlet 500 psig, turndown up to 1000:1; 100:1 typical, 3/4 to 3, NPT Source Inline NPT-ended body; flow figure depends on pipe size, not tabulated on this page.
  inline flanged, 3/4"-6" capacity not stated, max inlet 600 psig, turndown up to 1000:1; 100:1 typical, 3/4 to 6, 150# or 300# flange Source 300 lb flange, 316SS body rated 600 psig; 150 lb flange rated 230 psig.
• AccuracyAir: ±1% of reading ±0.2% of full scale; other gases: ±1.5% of reading ±0.5% of full scale
• Temperature range-40 to 121 °C
• Indexnot stated
• Correctionno correction of its own
• Hazardous locationFM Class I, II, III Div 1; Class I Zone 1; ATEX II 2 G Ex db IIB+H2 T4, II 2 D Ex tb IIIC T135C; IECEx equivalent
• Standardsnot stated
• Measurement CanadaNot approved
• Power12-24VDC (10-30VDC full range), 6W, 20W+ recommended supply
• Display showsrate, total, programmable
• Installinsertion perpendicular to pipe / inline in run, straight run 15 D upstream, 10 D downstream, no filter stated
• Quantify fittotal: pulse; rate: 4-20 mA
• Fit note4-20mA rate + pulse/Modbus total is the standard Quantify read; HART available if a HART-capable input card is on hand.

5D up / 5D down with the FC20 flow conditioner; 8D up / 4D down for inline style. Natural gas hazloc install requires a licensed gas technician.

Output signals

Price band $$$ (about $1,500 to $5,000)

Where to buy not stated

Not confirmed; contact Fox Thermal directly.

Product page · Datasheet · Manual

Our pick The Fox Thermal model to ask for on a 1 to 2 inch branch: it is the only one in the FT line with a stated inline NPT body, 3/4 to 3 inch, so it threads into a small branch without flanges, and it is rated FM Class I, II and III Division 1. Being thermal mass it reports standard-condition flow directly, with no separate pressure and temperature correction step, and it offers 4-20 mA for rate plus pulse or Modbus RTU for the total, which is exactly how we read a sub-meter. Two cautions: an inline install still wants 8 diameters upstream and 4 downstream, and a thermal-mass meter is calibrated to a gas, so the reading drifts if the gas library is set wrong or the supply composition moves; it is not Measurement Canada approved, so it is a monitoring meter, not a billing one.

Explosion-proof (FM/ATEX Div 1) version of the FT4 platform; the natural choice on the FT4 line when the branch sub-meter sits in a Division 1 area rather than Division 2.

• Capacity classesinsertion, 0.75"-12" pipe (no retractor) 73500 m³/h, rated at standard (already corrected) flow, max inlet 740 psig, accuracy floor 2595.63 CFH · 25956.28 CFH, turndown up to 1000:1; 100:1 typical, 0.75 to 12, insertion, compression fitting Source Up to 73,500 NM3/hr stated for a 12in pipe; pressure/temperature basis for that figure not restated on this page beyond 'factory calibration to NIST-traceable standards' (calibration traceability, not the flow condition). NM3/hr is a NORMAL (standard, corrected) flow, so this rating is compared against the standard flow a load needs, with no delivery-pressure factor applied to it.
  insertion, with retractor capacity not stated, max inlet 150 psig, turndown up to 1000:1; 100:1 typical, hot-tap retractor Source Pressure rating drops to 150 psig with a hot-tap retractor fitted.
  inline flanged, 0.75"-6" capacity not stated, max inlet 600 psig, turndown up to 1000:1; 100:1 typical, 0.75 to 6, 300# flange, 316SS Source 300# flange 316SS body 600 psig; carbon-steel 300# body rated 740 psig; 150# flange rated 230 psig.
• AccuracyAir: ±1% of reading ±0.2% of full scale; other gases: ±1.5% of reading ±0.5% of full scale
• Temperature range-40 to 121 °C
• Indexnot stated
• Correctionno correction of its own
• Hazardous locationFM/FMc Class I Div 1 Groups B,C,D (explosion-proof); ATEX II 2 G Ex db IIB+H2 T6/T4 Gb; IECEx, UKEX equivalent
• Standardsnot stated
• Measurement CanadaNot approved
• Power12-24VDC, 6W standard; 100-240VAC 50-60Hz, 7W optional
• Display showsrate, total, programmable
• Installinsertion perpendicular to pipe / inline in run, straight run 15 D upstream, 10 D downstream, no filter stated
• Quantify fittotal: pulse; rate: 4-20 mA
• Fit noteSame read routes as FT4A; choose FT4X specifically for Division 1 explosion-proof requirements.

5D up / 5D down with FC20 flow conditioner; 8D up / 4D down for inline style. Explosion-proof rating is the reason to pick FT4X over FT4A -- confirm the area classification (Div 1 vs Div 2) with the site's electrical classification drawing before ordering.

Output signals

Price band $$$$ ($5,000 and up)

Where to buy not stated

Not confirmed; contact Fox Thermal directly.

Product page · Datasheet · Manual

Residential/small-commercial diaphragm meter, 5 PSI MAOP, rated 250 CFH at 1/2-inch W.C. differential. Legacy American Meter Company / Elster / Honeywell design; not listed on Honeywell's current gas-distribution catalog (Elster-Instromet RABO/IRM/BK lines have replaced it there) but still encountered in the field on older utility-owned services.

• Capacity classesAC-250 rated capacity 250 CFH (7.1 m³/h), rated at 0.5 in W.C. differential across the meter, at a delivery pressure of 0.25 psig, max inlet 5 psig, 10 LT / 20 LT / 30 LT / #1 Sprague threaded bushing connections (specific pipe size not stated in sources reviewed) Source The 250 CFH figure is the flow at 0.5 in W.C. differential ACROSS the meter, at the 0.25 psig (7 in W.C.) base delivery pressure. The differential and the delivery pressure are two different measurements and are stated separately.
• Accuracynot stated
• Temperature range-34 to 60 °C
• Indexmechanical, reads in ft³
• Index notePointer or odometer index option, per manufacturer feature sheet.
• Correctionno correction of its own
• Hazardous locationnone stated (bare mechanical meter body)
• Standardsnot stated
• Measurement CanadaNot stated
• Powernone (mechanical meter; AMR/pulser accessories separately powered)
• Display showstotal
• Installnot stated
• Quantify fittotal: not established; rate: no route
• Fit noteBare diaphragm meter exposes no signal on its own. Needs an add-on AMR/pulser index or a corrector such as the EC 350 (honeywell-ec350) or the TCI temperature-compensating index (honeywell-tci), both already catalogued, to get any pulse or Modbus output.

Temperature compensation available, -30°F to +140°F (-34°C to 60°C), per manufacturer feature sheet.

Output signals

Price band $$ (hundreds to about $1,500)

Where to buy not stated

No independently confirmed Canadian/Ontario third-party distributor for this legacy line; likely encountered only as pre-existing utility-owned stock rather than a current new-build spec item.

Datasheet

Small-commercial diaphragm meter, 25 PSI MAOP, rated 1320 CFH at 2-inch W.C. differential. Legacy American Meter Company / Elster / Honeywell design; not listed on Honeywell's current gas-distribution catalog (Elster-Instromet RABO/IRM/BK lines have replaced it there) but still encountered in the field on older utility-owned services.

• Capacity classesAC-630 rated capacity 1320 CFH (37.4 m³/h), rated at 0.5 in W.C. differential across the meter, at a delivery pressure of 0.25 psig, max inlet 25 psig, 20 LT / 30 LT / 45 LT / #3-4 Sprague threaded bushing connections (specific pipe size not stated in sources reviewed) Source The 1320 CFH figure is the flow at 0.5 in W.C. differential ACROSS the meter, at the 0.25 psig (7 in W.C.) base delivery pressure. The differential and the delivery pressure are two different measurements and are stated separately.
• Accuracynot stated
• Temperature rangenot stated
• Indexmechanical, reads in ft³
• Index notePointer or odometer index option, per manufacturer feature sheet.
• Correctionno correction of its own
• Hazardous locationnone stated (bare mechanical meter body)
• Standardsnot stated
• Measurement CanadaNot stated
• Powernone (mechanical meter; AMR/pulser accessories separately powered)
• Display showstotal
• Installnot stated
• Quantify fittotal: not established; rate: no route
• Fit noteBare diaphragm meter exposes no signal on its own. Needs an add-on AMR/pulser index or a corrector such as the EC 350 (honeywell-ec350) or the TCI temperature-compensating index (honeywell-tci), both already catalogued, to get any pulse or Modbus output.

Output signals

Price band $$ (hundreds to about $1,500)

Where to buy not stated

No independently confirmed Canadian/Ontario third-party distributor for this legacy line; likely encountered only as pre-existing utility-owned stock rather than a current new-build spec item.

Datasheet

Commercial diaphragm meter, nominal 1000 CFH (28.3 m³/h) at 0.5-in W.C. differential (2200 CFH / 62.3 m³/h at 2-in W.C.). Offered in a lower-MAWP (25 PSIG) threaded-bushing model and a 100 PSIG model with straight NPT/flanged connections. Legacy American Meter Company / Elster / Honeywell design; not on Honeywell's current gas-distribution catalog. (Photo shown is the AL-800 case design; AL-series meters share the same bellows/case styling scaled by size: a size-specific photo was not found this pass.)

• Capacity classesAL-1000 @ 0.5in W.C. differential 1000 CFH (28.3 m³/h), rated at 0.5 in W.C. differential across the meter, at a delivery pressure of 0.25 psig, max inlet 100 psig, 1, 1" NPT (F) (100 PSIG model) Source The 1000 CFH figure is the flow at 0.5 in W.C. differential ACROSS the meter, at the 0.25 psig (7 in W.C.) base delivery pressure. The differential and the delivery pressure are two different measurements and are stated separately.
  AL-1000 @ 2in W.C. differential 2200 CFH (62.3 m³/h), rated at 2 in W.C. differential across the meter, at a delivery pressure of 0.25 psig, max inlet 100 psig, 1, 1" NPT (F) (100 PSIG model) Source The 2200 CFH figure is the flow at 2.0 in W.C. differential ACROSS the meter, at the 0.25 psig (7 in W.C.) base delivery pressure. The differential and the delivery pressure are two different measurements and are stated separately.
• Accuracynot stated
• Temperature rangenot stated
• Indexmechanical, reads in ft³
• Index noteMechanical odometer index; AMR adaptor compatibility not itemized in the source reviewed.
• Correctionno correction of its own
• Hazardous locationnone stated (bare mechanical meter body)
• Standardsnot stated
• Measurement CanadaNot stated
• Powernone (mechanical meter)
• Display showstotal
• Installnot stated
• Quantify fittotal: not established; rate: no route
• Fit noteBare diaphragm meter exposes no signal on its own. Needs an add-on AMR/pulser index or a corrector such as the EC 350 (honeywell-ec350) or Mini-Max (not separately catalogued; see research note) to get any pulse or Modbus output.

Lower-MAWP model: 25 PSIG, connections 1"-45 LT, 1" NPT (F), 2"-100 LT or #5 Sprague (25 PSIG model), approx. 54 lb. Higher-MAWP model: 100 PSIG, connections 1" NPT (F) (100 PSIG model), approx. 78 lb. (manufacturer dimension sheet, retrieved via Internet Archive).

Output signals

Price band $$$ (about $1,500 to $5,000)

Where to buy not stated

No independently confirmed Canadian/Ontario third-party distributor for this legacy line; likely encountered only as pre-existing utility-owned stock rather than a current new-build spec item.

Datasheet

Commercial diaphragm meter, nominal 1400 CFH (39.6 m³/h) at 0.5-in W.C. differential (3000 CFH / 85.0 m³/h at 2-in W.C.). Offered in a lower-MAWP (100 PSIG) threaded-bushing model and a 100 PSIG model with straight NPT/flanged connections. Legacy American Meter Company / Elster / Honeywell design; not on Honeywell's current gas-distribution catalog. (Photo shown is the AL-800 case design; AL-series meters share the same bellows/case styling scaled by size: a size-specific photo was not found this pass.)

• Capacity classesAL-1400 @ 0.5in W.C. differential 1400 CFH (39.6 m³/h), rated at 0.5 in W.C. differential across the meter, at a delivery pressure of 0.25 psig, max inlet 100 psig, 2 or 3, 2" NPT (F), 3" NPT (F) or 3" Flanged Source The 1400 CFH figure is the flow at 0.5 in W.C. differential ACROSS the meter, at the 0.25 psig (7 in W.C.) base delivery pressure. The differential and the delivery pressure are two different measurements and are stated separately.
  AL-1400 @ 2in W.C. differential 3000 CFH (85 m³/h), rated at 2 in W.C. differential across the meter, at a delivery pressure of 0.25 psig, max inlet 100 psig, 2 or 3, 2" NPT (F), 3" NPT (F) or 3" Flanged Source The 3000 CFH figure is the flow at 2.0 in W.C. differential ACROSS the meter, at the 0.25 psig (7 in W.C.) base delivery pressure. The differential and the delivery pressure are two different measurements and are stated separately.
• Accuracynot stated
• Temperature rangenot stated
• Indexmechanical, reads in ft³
• Index noteMechanical odometer index; AMR adaptor compatibility not itemized in the source reviewed.
• Correctionno correction of its own
• Hazardous locationnone stated (bare mechanical meter body)
• Standardsnot stated
• Measurement CanadaNot stated
• Powernone (mechanical meter)
• Display showstotal
• Installnot stated
• Quantify fittotal: not established; rate: no route
• Fit noteBare diaphragm meter exposes no signal on its own. Needs an add-on AMR/pulser index or a corrector such as the EC 350 (honeywell-ec350) or Mini-Max (not separately catalogued; see research note) to get any pulse or Modbus output.

Lower-MAWP model: 100 PSIG, connections 2" NPT (F), approx. 120 lb. Higher-MAWP model: 100 PSIG, connections 2" NPT (F), 3" NPT (F) or 3" Flanged, approx. 132 lb. (manufacturer dimension sheet, retrieved via Internet Archive).

Output signals

Price band $$$ (about $1,500 to $5,000)

Where to buy not stated

No independently confirmed Canadian/Ontario third-party distributor for this legacy line; likely encountered only as pre-existing utility-owned stock rather than a current new-build spec item.

Datasheet

Commercial diaphragm meter, nominal 2300 CFH (65.1 m³/h) at 0.5-in W.C. differential (5000 CFH / 141.6 m³/h at 2-in W.C.). Offered in a lower-MAWP (100 PSIG) threaded-bushing model and a 100 PSIG model with straight NPT/flanged connections. Legacy American Meter Company / Elster / Honeywell design; not on Honeywell's current gas-distribution catalog. (Photo shown is the AL-800 case design; AL-series meters share the same bellows/case styling scaled by size: a size-specific photo was not found this pass.)

• Capacity classesAL-2300 @ 0.5in W.C. differential 2300 CFH (65.1 m³/h), rated at 0.5 in W.C. differential across the meter, at a delivery pressure of 0.25 psig, max inlet 100 psig, 4, 4" NPT (F) or 4" Flanged Source The 2300 CFH figure is the flow at 0.5 in W.C. differential ACROSS the meter, at the 0.25 psig (7 in W.C.) base delivery pressure. The differential and the delivery pressure are two different measurements and are stated separately.
  AL-2300 @ 2in W.C. differential 5000 CFH (141.6 m³/h), rated at 2 in W.C. differential across the meter, at a delivery pressure of 0.25 psig, max inlet 100 psig, 4, 4" NPT (F) or 4" Flanged Source The 5000 CFH figure is the flow at 2.0 in W.C. differential ACROSS the meter, at the 0.25 psig (7 in W.C.) base delivery pressure. The differential and the delivery pressure are two different measurements and are stated separately.
• Accuracynot stated
• Temperature rangenot stated
• Indexmechanical, reads in ft³
• Index noteMechanical odometer index; AMR adaptor compatibility not itemized in the source reviewed.
• Correctionno correction of its own
• Hazardous locationnone stated (bare mechanical meter body)
• Standardsnot stated
• Measurement CanadaNot stated
• Powernone (mechanical meter)
• Display showstotal
• Installnot stated
• Quantify fittotal: not established; rate: no route
• Fit noteBare diaphragm meter exposes no signal on its own. Needs an add-on AMR/pulser index or a corrector such as the EC 350 (honeywell-ec350) or Mini-Max (not separately catalogued; see research note) to get any pulse or Modbus output.

Lower-MAWP model: 100 PSIG, connections 4" NPT (F), approx. 175 lb. Higher-MAWP model: 100 PSIG, connections 4" NPT (F) or 4" Flanged, approx. 192 lb. (manufacturer dimension sheet, retrieved via Internet Archive).

Output signals

Price band $$$ (about $1,500 to $5,000)

Where to buy not stated

No independently confirmed Canadian/Ontario third-party distributor for this legacy line; likely encountered only as pre-existing utility-owned stock rather than a current new-build spec item.

Datasheet

Residential/small-commercial diaphragm meter, 25 PSI MAOP, rated 425 CFH at 1/2-inch W.C. differential. Legacy American Meter Company / Elster / Honeywell design; not listed on Honeywell's current gas-distribution catalog (Elster-Instromet RABO/IRM/BK lines have replaced it there) but still encountered in the field on older utility-owned services.

• Capacity classesAL-425 rated capacity 425 CFH (12 m³/h), rated at 0.5 in W.C. differential across the meter, at a delivery pressure of 0.25 psig, max inlet 25 psig, 20 LT / 30 LT / 45 LT / #3-4 Sprague threaded bushing connections (specific pipe size not stated in sources reviewed) Source The 425 CFH figure is the flow at 0.5 in W.C. differential ACROSS the meter, at the 0.25 psig (7 in W.C.) base delivery pressure. The differential and the delivery pressure are two different measurements and are stated separately.
• Accuracynot stated
• Temperature range-34 to 60 °C
• Indexmechanical, reads in ft³
• Index notePointer or odometer index option, per manufacturer feature sheet.
• Correctionno correction of its own
• Hazardous locationnone stated (bare mechanical meter body)
• Standardsnot stated
• Measurement CanadaNot stated
• Powernone (mechanical meter; AMR/pulser accessories separately powered)
• Display showstotal
• Installnot stated
• Quantify fittotal: not established; rate: no route
• Fit noteBare diaphragm meter exposes no signal on its own. Needs an add-on AMR/pulser index or a corrector such as the EC 350 (honeywell-ec350) or the TCI temperature-compensating index (honeywell-tci), both already catalogued, to get any pulse or Modbus output.

Temperature compensation available, -30°F to +140°F (-34°C to 60°C), per manufacturer feature sheet.

Output signals

Price band $$ (hundreds to about $1,500)

Where to buy not stated

No independently confirmed Canadian/Ontario third-party distributor for this legacy line; likely encountered only as pre-existing utility-owned stock rather than a current new-build spec item.

Datasheet

Commercial diaphragm meter, nominal 5000 CFH (141.6 m³/h) at 0.5-in W.C. differential (11000 CFH / 311.5 m³/h at 2-in W.C.). Offered in a lower-MAWP (100 PSIG) threaded-bushing model and a 100 PSIG model with straight NPT/flanged connections. Legacy American Meter Company / Elster / Honeywell design; not on Honeywell's current gas-distribution catalog. (Photo shown is the AL-800 case design; AL-series meters share the same bellows/case styling scaled by size: a size-specific photo was not found this pass.)

• Capacity classesAL-5000 @ 0.5in W.C. differential 5000 CFH (141.6 m³/h), rated at 0.5 in W.C. differential across the meter, at a delivery pressure of 0.25 psig, max inlet 100 psig, 4, 4" NPT (F) or 4" Flanged Source The 5000 CFH figure is the flow at 0.5 in W.C. differential ACROSS the meter, at the 0.25 psig (7 in W.C.) base delivery pressure. The differential and the delivery pressure are two different measurements and are stated separately.
  AL-5000 @ 2in W.C. differential 11000 CFH (311.5 m³/h), rated at 2 in W.C. differential across the meter, at a delivery pressure of 0.25 psig, max inlet 100 psig, 4, 4" NPT (F) or 4" Flanged Source The 11000 CFH figure is the flow at 2.0 in W.C. differential ACROSS the meter, at the 0.25 psig (7 in W.C.) base delivery pressure. The differential and the delivery pressure are two different measurements and are stated separately.
• Accuracynot stated
• Temperature rangenot stated
• Indexmechanical, reads in ft³
• Index noteMechanical odometer index; AMR adaptor compatibility not itemized in the source reviewed.
• Correctionno correction of its own
• Hazardous locationnone stated (bare mechanical meter body)
• Standardsnot stated
• Measurement CanadaNot stated
• Powernone (mechanical meter)
• Display showstotal
• Installnot stated
• Quantify fittotal: not established; rate: no route
• Fit noteBare diaphragm meter exposes no signal on its own. Needs an add-on AMR/pulser index or a corrector such as the EC 350 (honeywell-ec350) or Mini-Max (not separately catalogued; see research note) to get any pulse or Modbus output.

Lower-MAWP model: 100 PSIG, connections 4" NPT (F), approx. 310 lb. Higher-MAWP model: 100 PSIG, connections 4" NPT (F) or 4" Flanged, approx. 327 lb. (manufacturer dimension sheet, retrieved via Internet Archive).

Output signals

Price band $$$ (about $1,500 to $5,000)

Where to buy not stated

No independently confirmed Canadian/Ontario third-party distributor for this legacy line; likely encountered only as pre-existing utility-owned stock rather than a current new-build spec item.

Datasheet

Commercial diaphragm meter, nominal 800 CFH (22.7 m³/h) at 0.5-in W.C. differential (1700 CFH / 48.1 m³/h at 2-in W.C.). Offered in a lower-MAWP (20 PSIG) threaded-bushing model and a 100 PSIG model with straight NPT/flanged connections. Legacy American Meter Company / Elster / Honeywell design; not on Honeywell's current gas-distribution catalog.

• Capacity classesAL-800 @ 0.5in W.C. differential 800 CFH (22.7 m³/h), rated at 0.5 in W.C. differential across the meter, at a delivery pressure of 0.25 psig, max inlet 100 psig, 1, 1" NPT (F) or #3-4 Sprague (100 PSIG model) Source The 800 CFH figure is the flow at 0.5 in W.C. differential ACROSS the meter, at the 0.25 psig (7 in W.C.) base delivery pressure. The differential and the delivery pressure are two different measurements and are stated separately.
  AL-800 @ 2in W.C. differential 1700 CFH (48.1 m³/h), rated at 2 in W.C. differential across the meter, at a delivery pressure of 0.25 psig, max inlet 100 psig, 1, 1" NPT (F) or #3-4 Sprague (100 PSIG model) Source The 1700 CFH figure is the flow at 2.0 in W.C. differential ACROSS the meter, at the 0.25 psig (7 in W.C.) base delivery pressure. The differential and the delivery pressure are two different measurements and are stated separately.
• Accuracynot stated
• Temperature rangenot stated
• Indexmechanical, reads in ft³
• Index noteMechanical odometer index; AMR adaptor compatibility not itemized in the source reviewed.
• Correctionno correction of its own
• Hazardous locationnone stated (bare mechanical meter body)
• Standardsnot stated
• Measurement CanadaNot stated
• Powernone (mechanical meter)
• Display showstotal
• Installnot stated
• Quantify fittotal: not established; rate: no route
• Fit noteBare diaphragm meter exposes no signal on its own. Needs an add-on AMR/pulser index or a corrector such as the EC 350 (honeywell-ec350) or Mini-Max (not separately catalogued; see research note) to get any pulse or Modbus output.

Lower-MAWP model: 20 PSIG, connections 1" NPT (F), 1"-30 LT, 1"-45 LT or #3-4 Sprague (20 PSIG model), approx. 50 lb. Higher-MAWP model: 100 PSIG, connections 1" NPT (F) or #3-4 Sprague (100 PSIG model), approx. 70 lb. (manufacturer dimension sheet, retrieved via Internet Archive).

Output signals

Price band $$$ (about $1,500 to $5,000)

Where to buy not stated

No independently confirmed Canadian/Ontario third-party distributor for this legacy line; likely encountered only as pre-existing utility-owned stock rather than a current new-build spec item.

Datasheet

Flexible PTZ (pressure/temperature/supercompressibility) volume corrector for standard diaphragm and rotary gas meters; converts metered volume at line conditions to a corrected volume at base conditions.

• Capacity classesnot stated
• AccuracyPressure correction ±0.1% (-40 to 65°C ambient), ±0.04% at reference conditions; temperature correction ±0.1% (Honeywell EC350 product page)
• Temperature range-40 to 65 °C
• Indexnot stated
• Correctionno correction of its own
• Hazardous locationCSA C/US Class I, Div 1, Groups C and D; Class I, Zone 0, AEx ia IIB T4 Ga; IECEx Ex ia IIB T4 Ga
• StandardsCSA, ATEX, IECEx, MID, EN 12405
• Measurement CanadaNot stated
• PowerAlkaline battery (5–7 years) or lithium battery (up to 10 years); DC power option available
• Display showstotal, programmable, pulse divider
• Installdirect-mount or remote, no filter stated
• Quantify fittotal: corrected volume over Modbus; rate: no route
• Fit noteBest signal on the page: read the EC350's corrected-volume Modbus register directly, or take its programmable pulse output if a Modbus gateway isn't available. Correctors are usually utility-owned and sealed, confirm ownership and what a customer may tap before wiring in.

Mounts on a standard meter drive/index; also available as a remote unit reading a pulse or encoder input.

Output signals

Price band $$$ (about $1,500 to $5,000)

Where to buy not stated

Sold through Honeywell Elster distribution; typically ordered/owned by the utility, not stocked retail.

Product page · Datasheet

Our pick The one corrector in this catalogue whose Modbus output Honeywell states outright, alongside three programmable opto-coupled pulse channels you can assign to corrected or uncorrected volume, so the corrected total reaches us whichever way the site is wired. It corrects for pressure, temperature and supercompressibility, runs 5 to 7 years on alkaline cells or up to 10 on lithium, and carries CSA Class I Division 1 Groups C and D with Ex ia to Zone 0, so the electronics are rated for the meter set. Measurement Canada approval is not stated for it, and a corrector on a billing meter is normally utility owned and sealed, so confirm ownership and what you may tap before anyone connects to it.

Electronic temperature-compensating index that direct-mounts on rotary meters (Dresser LMMA/B3, Romet RM1000–RM38,000, Elster American Meter C-body), giving pulse outputs for AMR without a separate corrector.

• Capacity classesnot stated
• AccuracyTemperature accuracy ±0.25% across full range (-40 to 170°F)
• Temperature range-40 to 77 °C
• Indexelectronic, reads in ft³
• Index noteTwo insulated-arm pulse output channels plus an integrated infrared communications port; three pulse output channels total for AMR connections (per Honeywell's product summary).
• Correctioncorrection built in, works with dresser-lmma, dresser-b3, romet-rm-series, elster-american-meter-c-body
• Hazardous locationCSA Class 1, Division 1 & 2, Group D certification (per Honeywell's product summary; full classification text not independently verified against the datasheet PDF in this pass)
• StandardsCSA
• Measurement CanadaNot stated
• Power20-year battery life
• Display showstotal, programmable, pulse divider
• Installdirect-mount on rotary meter body, no filter stated
• Quantify fittotal: an index pulser on the meter; rate: no route
• Fit noteA temperature-only index/pulser combination: simpler than a full PTZ corrector but still gives a temperature-corrected pulse, ranking above a bare uncompensated index pulse and below a full PTZ corrector.

Submersible design; LCD with configuration icons.

Output signals

Price band $$ (hundreds to about $1,500)

Where to buy not stated

Honeywell Elster Instromet distribution.

Product page · Datasheet

Elster/Instromet (now Honeywell) turbine gas meter, DN50-DN150 (2in-6in), rated to 100 barg; the smallest turbine meter in Honeywell's current lineup (the next size up, SM-RI-X, starts at DN200/8in). Turbine technology does not scale down to a 1in branch tap -- this is at the small end of what's available.

• Capacity classesDN50-DN150 (2in-6in), G65-G1000 56500 CFH (1600 m³/h), rated at fixed actual (index) rating, max inlet 100 barg, accuracy floor 2825 CFH · 1883.33 CFH, turndown 1:20 standard (1:30 available on request), 2 to 6, flanged Source 5 to 1600 m³/h stated as the meter's overall range across the DN50-150 sizes (G65-G1000); not broken out per individual size on this page. Qmax stated at line conditions. Qmax is stated at LINE conditions, so the figure is an actual volumetric flow through the rotor rather than a standard/corrected volume; the '0 barg' the earlier pass recorded was not an inlet-pressure basis and has been removed rather than read as one.
• Accuracy±1% (0.2 Qmax to Qmax); ±2% (Qmin to 0.2 Qmax)
• Temperature range-25 to 70 °C
• Indexmechanical, reads in m³
• Index noteMechanical roller-drum index integral to the meter body; low-frequency pulse output is the standard electronic tap.
• Correctionno correction of its own, works with Honeywell (Elster / American Meter) EC350
• Hazardous locationATEX, IECEx (not a traditional Class/Division hazloc listing on this page)
• StandardsMID, EN 12261, PED, ASME
• Measurement CanadaNot stated
• PowerNone stated (mechanical meter; pulse output electronics may need a separate low-power supply, not specified on this page)
• Display showstotal
• Installhorizontal or vertical, straight run 2 D upstream, ? D downstream, inlet strainer or filter needed
• Quantify fittotal: pulse; rate: derived from pulses
• Fit noteOnly a pulse output is documented (reed LF standard, inductive HF optional) -- no native 4-20mA or Modbus on the meter itself; a rate signal has to be derived from the pulse train. No exposed corrector/AMR output shown, so this needs an external pulse counter (e.g. the LoRaWAN pulse-counter route) rather than the corrector-Modbus route Tom ranked first.

Inlet straight run >= 2 DN per the product page; an upstream strainer/filter is standard practice on turbine meters even though not explicitly restated here. IP67 (S1 index head). MID-compliant (EU); Measurement Canada approval status not stated on this page -- worth confirming directly with Honeywell if a billing-grade application is ever considered, though for Quantify's use case (internal sub-metering downstream of the Enbridge meter) this does not apply.

Output signals

Price band $$$ (about $1,500 to $5,000)

Where to buy not stated

Sold through Honeywell Process Solutions / Elster-Instromet channels; no Canada-specific distributor page was reachable this pass.

Product page · Datasheet

A retrofit Encoder Receiver Transmitter module that direct-mounts to read an existing mechanical diaphragm meter's index, or remote-mounts to read a rotary meter's or corrector's pulse output, and transmits it over Itron's proprietary 900 MHz ERT network.

• Capacity classesnot stated
• Accuracy99.999% claimed agreement between the meter's own index and the transmitted value: this is an encoding-fidelity spec, not a gas-measurement accuracy spec; the module doesn't measure gas.
• Temperature rangenot stated
• Indexnot stated
• Correctionno correction of its own, works with Mercury Instruments EC-AT / Mini-P / Mini-AT / Mini-Max / TCI (remote-mount), Dresser IMC/W2 & MC2 (remote-mount), Eagle MPplus (remote-mount)
• Hazardous locationnone stated
• Standardsnot stated
• Measurement CanadaNot stated
• Powernot stated on the current product page
• Display showsnot stated
• Installnot stated
• Quantify fittotal: no route; rate: no route
• Fit noteThis is one of the domain's trap cases: the module reads the mechanical index and transmits by proprietary 900 MHz RF to Itron's own ERT network / the utility's handheld or fixed-network reader. No pulse contact, 4-20 mA loop, or Modbus port exists on the module. It looks like smart retrofit hardware and is often mistaken for an available signal source, it is not one for a third party.

Direct-mount compatible with Elster American AC250, National 250, Itron I-250/1000A, Sensus/Rockwell R275/750, and the legacy Sprague/Actaris/Schlumberger model list (175, 175RM, 175WC, 210, 240, 250, 250WC, 1A, 305, 400, 400A, 675A, 800A, 1000A). Remote-mount wires to Dresser LMMA/B3 and Romet rotary meters via a Dresser- or Romet-supplied adapter: that pulse never leaves the sealed system. FCC/IC license-exempt bubble-up RF, 900 MHz ISM band. Manufactured in Waseca, Minnesota.

Output signals

No wired output on the base meter. This is one of the domain's trap cases: the module reads the mechanical index and transmits by proprietary 900 MHz RF to Itron's own ERT network / the utility's handheld or fixed-network reader. No pulse contact, 4-20 mA loop, or Modbus port exists on the module. It looks like smart retrofit hardware and is often mistaken for an available signal source, it is not one for a third party.

Price band $ (under a few hundred dollars)

Where to buy not stated

No Canadian distributor found; direct utility AMI/AMR program contracts only.

Product page · Datasheet

Itron's newer-platform retrofit ERT module, built on IPv6 for the OpenWay Riva/Gen5 industrial-IoT network and backward-compatible to legacy 100G/ChoiceConnect readers. Also sold as a cellular-backhaul variant (Itron Cellular 500G Module) for sites without ERT mesh coverage. Itron also lists a Cellular 500G Module: the same retrofit idea as an IPv4 endpoint with cellular backhaul into Itron's IIoT network, with no open output either.

• Capacity classesnot stated
• Accuracynot stated
• Temperature rangenot stated
• Indexnot stated
• Correctionno correction of its own, works with Mercury Instruments EC-AT / Mini-P / Mini-AT / Mini-Max / TCI (remote-mount), Dresser IMC/W2 & MC2 (remote-mount), Eagle MPplus / XARTU-1 (remote-mount), Romet AdEM (remote-mount)
• Hazardous locationUL Class I, Division 1, Group D
• StandardsFCC Part 15.247, FCC Part 15.249
• Measurement CanadaNot stated
• Powernot stated
• Display showsnot stated
• Installnot stated
• Quantify fittotal: no route; rate: no route
• Fit noteSame trap as the 100G: 'IPv6 open standards' in Itron's 500G marketing describes the protocol inside Itron's own closed network, not an open door for third parties. No pulse, 4-20 mA, or Modbus output exists on this module, in either the RF-mesh or cellular-backhaul variant.

Compatibility footprint: residential diaphragm 75-630 CFH range (Elster American Meter, Sensus/Rockwell, Itron/Sprague, National), commercial diaphragm with top-mount drives, Dresser/Romet rotary meters via adapter, and third-party correctors. One module per uncorrected reading; a second module can be added for corrected consumption. Two site listings found for what is functionally the same hardware family: /products/gen5-500g-ert-module and /products/openway-riva-500g-ert-module. The base-module spec-sheet PDF found on Itron's live site is dated 2017 (footer '101510SP-02 08/17') and states 'Measurement Canada pending' for that hardware revision, the product itself is current on the site today under the 'Gen5' name, but current MC status is not confirmed. The Cellular 500G variant swaps the RF mesh for cellular/mesh/mobile backhaul and reports as an IPv4 endpoint to Itron's own UtilityIQ platform, same trap, described only as having 'industry-leading battery life' with no figure stated.

Output signals

No wired output on the base meter. Same trap as the 100G: 'IPv6 open standards' in Itron's 500G marketing describes the protocol inside Itron's own closed network, not an open door for third parties. No pulse, 4-20 mA, or Modbus output exists on this module, in either the RF-mesh or cellular-backhaul variant.

Price band $ (under a few hundred dollars)

Where to buy not stated

No Canadian distributor found; direct utility AMI/AMR program contracts only.

Product page · Datasheet

Itron's current commercial positive-displacement diaphragm gas meter family, 400 to 1000 ft³/hr. Its residential companion, the I-250, is marked 'Product no longer available for order' by Itron itself: still found in the field but not specced new.

• Capacity classes400A capacity not stated, 1A/Sprague-standard or #4 Sprague hub Source Itron's product page names the class 400A but states no rated capacity with the differential and base pressure it is quoted at, so no CFH figure is carried: a capacity with no stated basis is not comparable with anything.
  675A capacity not stated Source
  800A capacity not stated Source
  1000A capacity not stated Source
• Accuracynot stated
• Temperature rangenot stated
• Indexmechanical, reads in ft³
• Index noteItron's current site gives only the family range '675 to 1000 ft³/hr' for 675A/800A/1000A, not individual per-model capacities: left null rather than guessed. No differential-pressure basis, connection size, or accuracy figure is published for this line; these are thin listing pages with no linked datasheet PDF.
• Correctionno correction of its own
• Hazardous locationnone stated
• Standardsnot stated
• Measurement CanadaNot stated
• Powernone (mechanical meter)
• Display showstotal
• Installnot stated
• Quantify fittotal: not established; rate: not established
• Fit noteNo pulse, encoder or AMR output is documented on this meter body itself. Fitting a 100G or 500G ERT module only gives Itron's own proprietary network a reading: not a signal Quantify can read (see the ERT entries below).

The residential I-250 (a separate, smaller model) is explicitly discontinued on Itron's own site: a client may still encounter one in the field but it should not be specced new. No output of any kind on the base meter; a 100G/500G ERT retrofit reads the index but only reports to Itron's own network (see itron-100g-ert / itron-500g-ert).

Output signals

No wired output on the base meter. No pulse, encoder or AMR output is documented on this meter body itself. Fitting a 100G or 500G ERT module only gives Itron's own proprietary network a reading: not a signal Quantify can read (see the ERT entries below).

Price band $ (under a few hundred dollars)

Where to buy not stated

No Canadian distributor found; Itron's gas hardware goes to market via direct utility AMI/AMR program contracts and a login-gated partner portal, not open wholesale distribution.

Product page

Utility-grade gas AMR/AMI endpoint module that mounts to a residential/commercial diaphragm meter index and reports consumption over Itron's own Industrial IoT radio network: the gas-metering equivalent of the water guide's Neptune R900i trap: a sealed module with no customer-accessible pulse, Modbus or 4-20 mA output.

• Capacity classesnot stated
• Accuracynot stated
• Temperature rangenot stated
• Indexnot stated
• Correctionno correction of its own
• Hazardous locationnot stated
• Standardsnot stated
• Measurement CanadaNot stated
• Powernot stated
• Display showsnot stated
• Installmounts to the meter index, no filter stated
• Quantify fittotal: no route; rate: no route
• Fit noteThis is the 'sealed-module trap' example: no exposed pulse, Modbus or 4-20 mA terminal for a customer to tap, by design (Itron markets it as reading over its own proprietary IIoT/RF network only). If a client is stuck behind a sealed AMR module, the options mirror the water guide's R900i case, read the utility's portal/Green Button data instead (no hardware), or install a customer-owned corrector/pulser/sub-meter upstream or downstream of the utility meter where the utility allows it.

Itron's product page describes 'automated meter reading, high flow alarms, interval data and remote firmware download' over Itron's Gen5 Industrial IoT network. No datasheet, battery-life figure, hazardous-location rating or sensing-mechanism detail was accessible without an Itron customer-portal login from the sources we could reach: documented as a gap, not invented.

Output signals

No wired output on the base meter. This is the 'sealed-module trap' example: no exposed pulse, Modbus or 4-20 mA terminal for a customer to tap, by design (Itron markets it as reading over its own proprietary IIoT/RF network only). If a client is stuck behind a sealed AMR module, the options mirror the water guide's R900i case, read the utility's portal/Green Button data instead (no hardware), or install a customer-owned corrector/pulser/sub-meter upstream or downstream of the utility meter where the utility allows it.

Price band $$ (hundreds to about $1,500)

Where to buy not stated

Sold to utilities, not end customers; a Canadian gas utility such as Enbridge Gas would specify and own the AMR endpoint fleet, though the sources we could reach could not independently confirm which AMR/AMI vendor(s) Enbridge Gas currently deploys.

Product page

A communications module that connects a third-party electronic volume corrector to a utility network, backhauling temperature/pressure telemetry, events/alarms, corrected and uncorrected consumption, and interval reads. Itron does not make its own gas volume corrector: this is the closest thing to one in Itron's current lineup, and it directly resolves the brief's 'Corus corrector' assumption: no such Itron product exists.

• Capacity classesnot stated
• Accuracynot stated
• Temperature rangenot stated
• Indexnot stated
• Correctionno correction of its own, works with Honeywell/Mercury Instruments EC-AT, Mini-P, Mini-AT, Mini-Max, TCI, Dresser IMC/W2, MC2, Eagle MPplus, XARTU-1, Romet AdEM, Honeywell/Elster EC-350
• Hazardous locationnone stated
• Standardsnot stated
• Measurement CanadaNot stated
• Powernot stated
• Display showsnot stated
• Installnot stated
• Quantify fittotal: no route; rate: no route
• Fit noteThe IMU500T only talks to someone else's corrector and backhauls that data over Itron's own proprietary network to the utility: not to Quantify. If the underlying corrector itself has a pulse or Modbus output (e.g. Dresser IMC/W2), read that directly instead of expecting anything from this module.

Thin product page only; no datasheet PDF found, so accuracy/power/temperature are left null rather than guessed. Cross-checked against Itron's 90-page Gas Module Compatibility Matrix (rev. 005, dated 2026-08-27) for any 'Corus' reference: zero hits, confirming Itron has no branded gas volume corrector.

Output signals

No wired output on the base meter. The IMU500T only talks to someone else's corrector and backhauls that data over Itron's own proprietary network to the utility: not to Quantify. If the underlying corrector itself has a pulse or Modbus output (e.g. Dresser IMC/W2), read that directly instead of expecting anything from this module.

Price band $ (under a few hundred dollars)

Where to buy not stated

No Canadian distributor found; direct utility AMI/AMR program contracts only.

Product page

Itron's solid-state ultrasonic residential/light-commercial gas meter, sold in two capacity classes, with an integral autonomous safety shutoff valve. Over one million units shipped in North America as of March 2023. Confirmed sold in Canada: na.itron.com lists Canada as a selectable region, and both spec sheets cite Measurement Canada PS-G-06 as a design target.

• Capacity classesIntelis 250 300 CFH (8.5 m³/h), rated at 0.5 in W.C. differential across the meter, max inlet 10 psig, 1A/Sprague-standard or #4 Sprague hub Source
  Intelis 425 600 CFH (16.99 m³/h), rated at 0.5 in W.C. differential across the meter, max inlet 10 psig, 1A/Sprague-standard or #4 Sprague hub Source
• AccuracyClass 1: ±1% across the rated flow range; ±0.5% at room temperature
• Temperature rangenot stated
• Indexelectronic
• Index noteUp to 20% hydrogen-blend compatible; autonomous high-flow/high-pressure/high-temperature safety shutoff; reverse-flow and tamper alarms; onboard self-diagnostics. Measurement Canada PS-G-06 is cited on the spec sheets as a design target/standard, not a granted approval number: no approval number was found.
• Correctionno correction of its own
• Hazardous locationUL Class I, Division 1 intrinsic safety
• StandardsANSI B109.6, ANSI B109.1, ANSI B109.2
• Measurement CanadaNot stated
• Power4x replaceable 'A'-cell lithium batteries, 20-year design life
• Display showsnot stated
• Installnot stated
• Quantify fittotal: no route; rate: no route
• Fit noteCommunications are embedded RF only (ChoiceConnect/OpenWay Riva/Gen5): no wired pulse, Modbus, or 4-20 mA output exists on the meter. This is a closed, utility-network-only device; do not assume Quantify can read it.

4.35 lb (Intelis 250) / 6.95 lb (Intelis 425). Integral autonomous shutoff valve triggers on non-payment, move-out, line maintenance, or a hazardous condition.

Output signals

No wired output on the base meter. Communications are embedded RF only (ChoiceConnect/OpenWay Riva/Gen5): no wired pulse, Modbus, or 4-20 mA output exists on the meter. This is a closed, utility-network-only device; do not assume Quantify can read it.

Price band $$ (hundreds to about $1,500)

Where to buy not stated

Confirmed sold in Canada (Canada is a selectable region on na.itron.com; both spec sheets cite Measurement Canada PS-G-06), but no named Canadian distributor was found: Itron's gas AMI go-to-market is direct utility contracts, not open distribution.

Product page · Datasheet

Romet's one-size-fits-all electronic volume corrector line: AdEM-T corrects temperature only, AdEM-PTZ adds pressure and supercompressibility; direct-mount (Click Kit) on Romet or Dresser (B3/LMMA) rotary meters, or remote-mount (AdEM-PTZ-r) from any meter with a standard dry-contact pulse, or instrument-drive (AdEM-PTZ-MI) for large diaphragm and turbine meters.

• Capacity classesnot stated
• Accuracy±0.3% nominal (% of reading), total accuracy
• Temperature range-40 to 65 °C
• Indexnot stated
• Correctionno correction of its own, works with romet-rm-series, dresser-b3, dresser-lmma
• Hazardous locationIntrinsically safe: Class I, Zone 0 (ATEX), Class I, Div 1, Group D (NEC); CSA Approval 80190057; CSA Model Designation AdEM EVC-02-P; IECEx Certification of Conformity
• StandardsATEX, IECEx, CSA
• Measurement CanadaApproved, approval AG-0606 Source
• Power15-year nominal battery life (AdEM-PTZ family; AdEM-T is 20-year), replaceable, with end-of-life warning
• Display showstotal, programmable, pulse divider
• Installdirect-mount (Click Kit) or remote/instrument-drive per model variant, no filter stated
• Quantify fittotal: corrected volume as pulses; rate: no route
• Fit noteConfirms the charter's preference order for correctors: take a corrected-volume pulse channel. The module is itself Ex ia intrinsically safe, which answers part of the charter's IS question directly, see research/signals.md §a.

12-year Measurement Canada accuracy seal; non-volatile EEPROM logs 2088 interval logs (348 days), 1536 daily logs, 204 alarm logs, 512 event logs; compatible with Itron, Sensus, Aclara and other AMI/AMR endpoints riding alongside the pulse output.

Output signals

Price band $$$ (about $1,500 to $5,000)

Where to buy romet-direct

Romet Limited, Mississauga, Ontario: Canadian manufacturer, direct sales/support at 1-800-387-3201.

Product page · Datasheet

Our pick The only corrector here with a Measurement Canada approval number on record, AG-0606, a 12-year accuracy seal, and a Canadian manufacturer in Mississauga behind it. Four isolated pulse channels give you two corrected-volume outputs, an uncorrected one and a programmable one, and the direct-mount, remote-mount and instrument-drive variants cover rotary, large diaphragm and turbine bodies from a single electronics package on a 15-year battery. Plan the read as RS232 and pulse: the info sheets state RS232 only while the unit's own nameplate photo prints RS485, which this research could not reconcile, so ask Romet for the control drawing before you count on a serial or Modbus read.

Temperature-compensated rotary displacement meter rated 1000 CFH (28.3 m³/h) at low pressure; ANSI 125 FF flanged, 2 in connection. Mechanical body only: pairs with Romet's AdEM electronic module (see romet-adem-ptz) for a corrected-volume pulse output. (Photo shown is a representative Romet rotary-meter product photo, not size-specific, Romet's site does not publish distinct per-capacity photos, only line-drawing dimension sheets.)

• Capacity classesRMT1000 rated capacity 1000 CFH (28.3 m³/h), rated at 0.25 psig inlet pressure, at a delivery pressure of 0.25 psig, max inlet 175 psig, start flow 0.48 CFH, accuracy floor 15.38 CFH at ±2% · 28.57 CFH at ±1%, turndown 1:65 (±2%) / 1:35 (±1%), 2 in, ANSI 125 FF flange Source Romet publishes this class's capacity at 0.25 psig (7 in W.C.) and a full corrected-capacity curve from 2 to 175 psig on the same sheet; only the 0.25 psig figure is carried here. The stated 0.48 CFH is the START RATE, not the accuracy floor: the 1:65 (±2%) / 1:35 (±1%) bands put the accuracy floor at 15.38 CFH (±2%) and 28.57 CFH (±1%).
• Accuracy±1% within 1:35 (±1%) turndown; ±2% across full 1:65 (±2%) rangeability (per capacity/differential guide)
• Temperature rangenot stated
• Indexmechanical, reads in ft³, multiplier 10
• Index pulse weights10 ft³
• Index noteStandard centre (end or side) mechanical odometer index (STD CTR); STDID/DCID electronic-ready drive option shown on the meter's instrument drive.
• Correctionno correction of its own, works with Romet AdEM-PTZ
• Hazardous locationnone stated (bare mechanical meter body; hazloc rating applies to the AdEM electronic module, see romet-adem-ptz)
• Standardsnot stated
• Measurement CanadaNot stated
• Powernone (mechanical meter; electronic index/corrector accessories are separately powered)
• Display showstotal
• Installinlet strainer or filter needed
• Quantify fittotal: an index pulser on the meter; rate: no route
• Fit noteBare RMT body with the optional LF pulser gives a raw, uncorrected volume pulse (index-pulse tier). Add Romet's AdEM-PTZ module (romet-adem-ptz, already catalogued) to reach the charter's top-preference corrector-pulse tier.

Romet specifies inlet strainer/filter protection for rotary meters in its installation bulletin; consult Installation Bulletin 603 for orientation and strainer requirements (not itemized numerically in the two-page model spec sheet reviewed).

Output signals

Price band $$$ (about $1,500 to $5,000)

Where to buy Romet Limited (direct) · M&RS Controls (M. & R. S. Controls)

Canadian manufacturer, Mississauga ON; direct sales (1-800-387-3201) or via M&RS Controls, Romet's exclusive third-party distributor and a Measurement Canada accredited meter shop (#A-0081) with ON/AB/SK branches.

Product page · Datasheet · Manual

Temperature-compensated rotary displacement meter rated 2000 CFH (56.6 m³/h) at low pressure; ANSI 125 FF flanged, 2 in connection. Mechanical body only: pairs with Romet's AdEM electronic module (see romet-adem-ptz) for a corrected-volume pulse output. (Photo shown is a representative Romet rotary-meter product photo, not size-specific, Romet's site does not publish distinct per-capacity photos, only line-drawing dimension sheets.)

• Capacity classesRMT2000 rated capacity 2000 CFH (56.6 m³/h), rated at 0.25 psig inlet pressure, at a delivery pressure of 0.25 psig, max inlet 175 psig, start flow 0.42 CFH, accuracy floor 13.79 CFH at ±2% · 20 CFH at ±1%, turndown 1:145 (±2%) / 1:100 (±1%), 2 in, ANSI 125 FF flange Source Romet publishes this class's capacity at 0.25 psig (7 in W.C.) and a full corrected-capacity curve from 2 to 175 psig on the same sheet; only the 0.25 psig figure is carried here. The stated 0.42 CFH is the START RATE, not the accuracy floor: the 1:145 (±2%) / 1:100 (±1%) bands put the accuracy floor at 13.79 CFH (±2%) and 20.0 CFH (±1%).
• Accuracy±1% within 1:100 (±1%) turndown; ±2% across full 1:145 (±2%) rangeability (per capacity/differential guide)
• Temperature rangenot stated
• Indexmechanical, reads in ft³, multiplier 10 or 100
• Index pulse weights10 ft³, 100 ft³
• Index noteStandard centre (end or side) mechanical odometer index (STD CTR); STDID/DCID electronic-ready drive option shown on the meter's instrument drive.
• Correctionno correction of its own, works with Romet AdEM-PTZ
• Hazardous locationnone stated (bare mechanical meter body; hazloc rating applies to the AdEM electronic module, see romet-adem-ptz)
• Standardsnot stated
• Measurement CanadaNot stated
• Powernone (mechanical meter; electronic index/corrector accessories are separately powered)
• Display showstotal
• Installinlet strainer or filter needed
• Quantify fittotal: an index pulser on the meter; rate: no route
• Fit noteBare RMT body with the optional LF pulser gives a raw, uncorrected volume pulse (index-pulse tier). Add Romet's AdEM-PTZ module (romet-adem-ptz, already catalogued) to reach the charter's top-preference corrector-pulse tier.

Romet specifies inlet strainer/filter protection for rotary meters in its installation bulletin; consult Installation Bulletin 603 for orientation and strainer requirements (not itemized numerically in the two-page model spec sheet reviewed).

Output signals

Price band $$$ (about $1,500 to $5,000)

Where to buy Romet Limited (direct) · M&RS Controls (M. & R. S. Controls)

Canadian manufacturer, Mississauga ON; direct sales (1-800-387-3201) or via M&RS Controls, Romet's exclusive third-party distributor and a Measurement Canada accredited meter shop (#A-0081) with ON/AB/SK branches.

Product page · Datasheet · Manual

Temperature-compensated rotary displacement meter rated 3000 CFH (85.0 m³/h) at low pressure; ANSI 125 FF flanged, 2 in connection. Mechanical body only: pairs with Romet's AdEM electronic module (see romet-adem-ptz) for a corrected-volume pulse output. (Photo shown is a representative Romet rotary-meter product photo, not size-specific, Romet's site does not publish distinct per-capacity photos, only line-drawing dimension sheets.)

• Capacity classesRMT3000 rated capacity 3000 CFH (85 m³/h), rated at 0.25 psig inlet pressure, at a delivery pressure of 0.25 psig, max inlet 175 psig, start flow 0.44 CFH, accuracy floor 18.75 CFH at ±2% · 35.29 CFH at ±1%, turndown 1:160 (±2%) / 1:85 (±1%), 2 in, ANSI 125 FF flange Source Romet publishes this class's capacity at 0.25 psig (7 in W.C.) and a full corrected-capacity curve from 2 to 175 psig on the same sheet; only the 0.25 psig figure is carried here. The stated 0.44 CFH is the START RATE, not the accuracy floor: the 1:160 (±2%) / 1:85 (±1%) bands put the accuracy floor at 18.75 CFH (±2%) and 35.29 CFH (±1%).
• Accuracy±1% within 1:85 (±1%) turndown; ±2% across full 1:160 (±2%) rangeability (per capacity/differential guide)
• Temperature rangenot stated
• Indexmechanical, reads in ft³, multiplier 10 or 100
• Index pulse weights10 ft³, 100 ft³
• Index noteStandard centre (end or side) mechanical odometer index (STD CTR); STDID/DCID electronic-ready drive option shown on the meter's instrument drive.
• Correctionno correction of its own, works with Romet AdEM-PTZ
• Hazardous locationnone stated (bare mechanical meter body; hazloc rating applies to the AdEM electronic module, see romet-adem-ptz)
• Standardsnot stated
• Measurement CanadaNot stated
• Powernone (mechanical meter; electronic index/corrector accessories are separately powered)
• Display showstotal
• Installinlet strainer or filter needed
• Quantify fittotal: an index pulser on the meter; rate: no route
• Fit noteBare RMT body with the optional LF pulser gives a raw, uncorrected volume pulse (index-pulse tier). Add Romet's AdEM-PTZ module (romet-adem-ptz, already catalogued) to reach the charter's top-preference corrector-pulse tier.

Romet specifies inlet strainer/filter protection for rotary meters in its installation bulletin; consult Installation Bulletin 603 for orientation and strainer requirements (not itemized numerically in the two-page model spec sheet reviewed).

Output signals

Price band $$$ (about $1,500 to $5,000)

Where to buy Romet Limited (direct) · M&RS Controls (M. & R. S. Controls)

Canadian manufacturer, Mississauga ON; direct sales (1-800-387-3201) or via M&RS Controls, Romet's exclusive third-party distributor and a Measurement Canada accredited meter shop (#A-0081) with ON/AB/SK branches.

Product page · Datasheet · Manual

Our pick Best turndown-to-capacity balance of the RMT line for a mid-size 2 in facility service: 1:160 (±2%) rangeability down to a 0.44 CFH start rate while still covering 3000 CFH (85.0 m³/h) at 0.25 psig, wide enough to hold accuracy through a facility's normal load swings without stepping up to the 3 in RMT7000 body. Source: manufacturer spec sheet (RMT3000, retrieved 2026-09-03).

Temperature-compensated rotary displacement meter rated 5000 CFH (141.6 m³/h) at low pressure; ANSI 125 FF flanged, 2 in (3 in flange variant also offered, not independently sourced this pass) connection. Mechanical body only: pairs with Romet's AdEM electronic module (see romet-adem-ptz) for a corrected-volume pulse output. (Photo shown is a representative Romet rotary-meter product photo, not size-specific, Romet's site does not publish distinct per-capacity photos, only line-drawing dimension sheets.)

• Capacity classesRMT5000 rated capacity 5000 CFH (141.6 m³/h), rated at 0.25 psig inlet pressure, at a delivery pressure of 0.25 psig, max inlet 175 psig, start flow 1.2 CFH, accuracy floor 20 CFH at ±2% · 25 CFH at ±1%, turndown 1:250 (±2%) / 1:200 (±1%), 2 in (3 in flange variant also offered, not independently sourced this pass), ANSI 125 FF flange Source Romet publishes this class's capacity at 0.25 psig (7 in W.C.) and a full corrected-capacity curve from 2 to 175 psig on the same sheet; only the 0.25 psig figure is carried here. The stated 1.2 CFH is the START RATE, not the accuracy floor: the 1:250 (±2%) / 1:200 (±1%) bands put the accuracy floor at 20.0 CFH (±2%) and 25.0 CFH (±1%).
• Accuracy±1% within 1:200 (±1%) turndown; ±2% across full 1:250 (±2%) rangeability (per capacity/differential guide)
• Temperature rangenot stated
• Indexmechanical, reads in ft³, multiplier 10 or 100
• Index pulse weights10 ft³, 100 ft³
• Index noteStandard centre (end or side) mechanical odometer index (STD CTR); STDID/DCID electronic-ready drive option shown on the meter's instrument drive.
• Correctionno correction of its own, works with Romet AdEM-PTZ
• Hazardous locationnone stated (bare mechanical meter body; hazloc rating applies to the AdEM electronic module, see romet-adem-ptz)
• Standardsnot stated
• Measurement CanadaNot stated
• Powernone (mechanical meter; electronic index/corrector accessories are separately powered)
• Display showstotal
• Installinlet strainer or filter needed
• Quantify fittotal: an index pulser on the meter; rate: no route
• Fit noteBare RMT body with the optional LF pulser gives a raw, uncorrected volume pulse (index-pulse tier). Add Romet's AdEM-PTZ module (romet-adem-ptz, already catalogued) to reach the charter's top-preference corrector-pulse tier.

Romet specifies inlet strainer/filter protection for rotary meters in its installation bulletin; consult Installation Bulletin 603 for orientation and strainer requirements (not itemized numerically in the two-page model spec sheet reviewed).

Output signals

Price band $$$ (about $1,500 to $5,000)

Where to buy Romet Limited (direct) · M&RS Controls (M. & R. S. Controls)

Canadian manufacturer, Mississauga ON; direct sales (1-800-387-3201) or via M&RS Controls, Romet's exclusive third-party distributor and a Measurement Canada accredited meter shop (#A-0081) with ON/AB/SK branches.

Product page · Datasheet · Manual

Temperature-compensated rotary displacement meter rated 7000 CFH (198.2 m³/h) at low pressure; ANSI 125 FF flanged, 3 in connection. Mechanical body only: pairs with Romet's AdEM electronic module (see romet-adem-ptz) for a corrected-volume pulse output. (Photo shown is a representative Romet rotary-meter product photo, not size-specific, Romet's site does not publish distinct per-capacity photos, only line-drawing dimension sheets.)

• Capacity classesRMT7000 rated capacity 7000 CFH (198.2 m³/h), rated at 0.25 psig inlet pressure, at a delivery pressure of 0.25 psig, max inlet 175 psig, start flow 0.8 CFH, accuracy floor 38.89 CFH at ±2% · 82.35 CFH at ±1%, turndown 1:180 (±2%) / 1:85 (±1%), 3 in, ANSI 125 FF flange Source Romet publishes this class's capacity at 0.25 psig (7 in W.C.) and a full corrected-capacity curve from 2 to 175 psig on the same sheet; only the 0.25 psig figure is carried here. The stated 0.8 CFH is the START RATE, not the accuracy floor: the 1:180 (±2%) / 1:85 (±1%) bands put the accuracy floor at 38.89 CFH (±2%) and 82.35 CFH (±1%).
• Accuracy±1% within 1:85 (±1%) turndown; ±2% across full 1:180 (±2%) rangeability (per capacity/differential guide)
• Temperature rangenot stated
• Indexmechanical, reads in ft³, multiplier 10 or 100
• Index pulse weights10 ft³, 100 ft³
• Index noteStandard centre (end or side) mechanical odometer index (STD CTR); STDID/DCID electronic-ready drive option shown on the meter's instrument drive.
• Correctionno correction of its own, works with Romet AdEM-PTZ
• Hazardous locationnone stated (bare mechanical meter body; hazloc rating applies to the AdEM electronic module, see romet-adem-ptz)
• Standardsnot stated
• Measurement CanadaNot stated
• Powernone (mechanical meter; electronic index/corrector accessories are separately powered)
• Display showstotal
• Installinlet strainer or filter needed
• Quantify fittotal: an index pulser on the meter; rate: no route
• Fit noteBare RMT body with the optional LF pulser gives a raw, uncorrected volume pulse (index-pulse tier). Add Romet's AdEM-PTZ module (romet-adem-ptz, already catalogued) to reach the charter's top-preference corrector-pulse tier.

Romet specifies inlet strainer/filter protection for rotary meters in its installation bulletin; consult Installation Bulletin 603 for orientation and strainer requirements (not itemized numerically in the two-page model spec sheet reviewed).

Output signals

Price band $$$ (about $1,500 to $5,000)

Where to buy Romet Limited (direct) · M&RS Controls (M. & R. S. Controls)

Canadian manufacturer, Mississauga ON; direct sales (1-800-387-3201) or via M&RS Controls, Romet's exclusive third-party distributor and a Measurement Canada accredited meter shop (#A-0081) with ON/AB/SK branches.

Product page · Datasheet · Manual

Sage's newer industrial line; the headline spec is a very short 3D upstream straight-run requirement on the inline body and roughly 10% of the power draw Sage says other thermal meter makers need -- a low-power, tight-install branch sub-meter.

• Capacity classesinsertion/inline, general capacity not stated, start flow 300 CFH, turndown 100:1 (1000:1 resolution) Source Page states 'ultra-low flow sensitivity down to 5 SFPM' but no pipe-size SCFM/m3h table or pressure rating published on this page.
• Accuracy±1.0% of reading ±0.5% of full scale (all gases)
• Temperature rangenot stated
• Indexnot stated
• Correctionno correction of its own
• Hazardous locationClass I Div 2 (Div 1 optional); NEMA 4X enclosure
• Standardsnot stated
• Measurement CanadaNot approved
• Power24VDC, under 3W (about 100mA)
• Display showsrate, total, programmable
• Installinline, straight run 3 D upstream, ? D downstream, no filter stated
• Quantify fittotal: pulse; rate: 4-20 mA
• Fit noteSame 4-20/pulse/Modbus read routes; Div 1 optional if the branch happens to sit in a Div 1 room.

Inline models need only 3D upstream per the product page; optional Bluetooth setup on this model only.

Output signals

Price band $$$ (about $1,500 to $5,000)

Where to buy not stated

Not confirmed.

Product page · Datasheet

Sage Metering's flagship insertion thermal mass meter (Digital Hybrid Circuit sensor); built-in flow conditioning on the inline body cuts straight-run needs, and it is one of the few lines here with EPA/GHG-reporting language on the product page.

• Capacity classesinsertion, general capacity not stated, start flow 300 CFH, turndown 100:1 (1000:1 resolution), 1/2in standard probe, 3/4in rugged optional Source Page states sensitivity down to 5 SFPM (about 1 SCFM in a 6in pipe as a worked example); no pipe-size-by-pipe-size SCFM/m3h table or pressure rating published on this page. minFlowCFH is the worked-example figure (1 SCFM = 60 CFH), not a spec table entry.
• Accuracy±0.5% of full scale + ±1.0% of reading
• Temperature rangenot stated
• Indexnot stated
• Correctionno correction of its own
• Hazardous locationCL I Div 2 (standard); NEMA 4 enclosure
• Standardsnot stated
• Measurement CanadaNot approved
• Power24VDC, AC115 or AC230 (configuration-dependent); under 100mA at 24VDC
• Display showsrate, total, programmable
• Installinsertion (remote electronics option, lead length to 1000ft) or inline, no filter stated
• Quantify fittotal: pulse; rate: 4-20 mA
• Fit noteStandard 4-20 rate + pulse/Modbus total read; CL I Div 2 only (not Div 1) so check the area classification first.

Inline version has built-in flow conditioning per the product page, reducing straight-run needs versus a raw insertion probe; specific diameters not stated on this page.

Output signals

Price band $$$ (about $1,500 to $5,000)

Where to buy not stated

Not confirmed; Sage Metering lists a distributor page but names were not returned to the fetch tool.

Product page · Datasheet

High-volume gas turbine ('turbo') meter for commercial/industrial and larger custody-transfer loads. Dual sensing rotors and a self-checking algorithm compensate in real time for jetting, pulsation, swirl and rotor drag; the top-entry measuring module can be swapped/recalibrated without cutting the meter out of the line.

• Capacity classesAAT-18 (G250/DN100) capacity not stated, 4 in, flanged Source
  AAT-27 (G400/DN100) capacity not stated, 4 in, flanged Source
  AAT-35 (G650/DN150) capacity not stated, 6 in, flanged Source
  AAT-57 (G1000/DN150) capacity not stated, 6 in, flanged Source
  AAT-60 (G1000/DN200) capacity not stated, 8 in, flanged Source
  AAT-90 (G1600/DN200) capacity not stated, 8 in, flanged Source
  AAT-140 (G2500/DN300) capacity not stated, 12 in, flanged Source
  AAT-230 (G4000/DN300) capacity not stated, 12 in, flanged Source
• Accuracy±1.0% over the entire operating range of the meter (per manufacturer)
• Temperature rangenot stated
• Indexnot stated
• Index noteRemovable, top-entry measuring module. Manufacturer copy references 'remote totalization of adjusted and corrected volumes,' which implies some onboard temperature/pressure handling, but Sensus does not name a separate 'corrector' product for this meter (see research notes).
• Correctionnot stated
• Hazardous locationnone stated on the product page
• Standardsnot stated
• Measurement CanadaNot stated
• Powernot stated
• Display showsnot stated
• Installnot stated
• Quantify fittotal: not established; rate: not established
• Fit noteNo output signal (pulse/Modbus/encoder) is documented on the marketing page. The full data sheet exists only as an image-format PDF (not machine-readable in this pass) and likely carries the real output/IO options: pull it directly from Sensus before quoting a turndown/output for this meter.

Worn measuring modules can be factory-refurbished and returned rather than replacing the whole meter body.

Output signals

No wired output on the base meter. No output signal (pulse/Modbus/encoder) is documented on the marketing page. The full data sheet exists only as an image-format PDF (not machine-readable in this pass) and likely carries the real output/IO options: pull it directly from Sensus before quoting a turndown/output for this meter.

Price band $$$ (about $1,500 to $5,000)

Where to buy not stated

Product page · Datasheet

A Class 250-equivalent residential diaphragm gas meter using Sensus's patented accuWAVE diaphragm design, for standard residential natural gas, butane, propane or air metering.

• Capacity classesR-275 (natural gas) capacity not stated, max inlet 10 psig, 10, 20 or 30 Lt.; 1 1/4", 1A or #2 Spg., screw/spud connections Source Xylem's page names the R-275 class but states no differential or base pressure for the 275 figure, so no rated capacity is carried: a capacity with no stated basis is not comparable with anything.
• Accuracynot stated
• Temperature range-34 to 66 °C
• Indexmechanical, reads in ft³, multiplier 8 ft³/revolution
• Index noteRated capacity varies by gas: 275 CFH natural gas, 215 CFH air, 175 CFH propane, 150 CFH butane, all at the same MAOP of 5-10 psi. The differential/pressure basis for the CFH rating is not stated on the product page.
• Correctionno correction of its own
• Hazardous locationnone stated
• Standardsnot stated
• Measurement CanadaNot stated
• Powernone (mechanical meter)
• Display showstotal
• Installnot stated
• Quantify fittotal: not established; rate: not established
• Fit noteNo pulse, encoder or AMR output is described for this base mechanical meter on Sensus/Xylem's own page. A third-party index pulser retrofit may be physically possible but was not confirmed from the sources we could reach: do not assume a signal is available without checking with Sensus directly.

14 lb (6.4 kg) meter body; no pulse or AMR output option is described on Sensus's own current product page. A related '415 Diaphragm Meter' (Class 400) at a legacy URL is explicitly marked discontinued on the page itself: treat any 'R-415' reference as not current.

Output signals

No wired output on the base meter. No pulse, encoder or AMR output is described for this base mechanical meter on Sensus/Xylem's own page. A third-party index pulser retrofit may be physically possible but was not confirmed from the sources we could reach: do not assume a signal is available without checking with Sensus directly.

Price band $ (under a few hundred dollars)

Where to buy not stated

Xylem's Sensus brand page explicitly offers a Canada English/Canada Français locale, confirming Canadian sales presence, but no dedicated distributor list was found for this specific model.

Product page

A battery-powered, two-way FlexNet radio transceiver that retrofits onto ultrasonic, rotary or turbine gas meters (Sensus and non-Sensus) for utility AMI reading.

• Capacity classesnot stated
• Accuracynot stated
• Temperature range-34 to 66 °C
• Indexnot stated
• Correctionno correction of its own
• Hazardous locationnone stated
• StandardsFCC CFR 47 (Part 24D, 101C, 15), Industry Canada RSS-GEN, RSS-119, RSS-210
• Measurement CanadaNot stated
• Powerlithium thionyl chloride battery with hybrid layer capacitor, 20-year warranty
• Display showsnot stated
• Installnot stated
• Quantify fittotal: no route; rate: no route
• Fit noteThis is the domain's trap case for Sensus: the transceiver's product page describes only proprietary 896-960 MHz FlexNet communication to the utility's own fixed network, no open pulse, Modbus or 4-20 mA output is documented. Quantify cannot read this device directly. It is often mistaken for a usable signal source because it looks like a smart module; it isn't one for third parties.

Seven models covering a range of Sensus and non-Sensus meters.

Output signals

No wired output on the base meter. This is the domain's trap case for Sensus: the transceiver's product page describes only proprietary 896-960 MHz FlexNet communication to the utility's own fixed network, no open pulse, Modbus or 4-20 mA output is documented. Quantify cannot read this device directly. It is often mistaken for a usable signal source because it looks like a smart module; it isn't one for third parties.

Price band $$ (hundreds to about $1,500)

Where to buy not stated

Radio operation is Industry Canada RSS-certified (RSS-GEN, RSS-119, RSS-210), confirming it is legal to operate in Canada, but that is a radio-spectrum certification, not evidence of Measurement Canada metrology approval or of a named Canadian distributor.

Product page

Sensus's earlier solid-state ultrasonic gas meter line, still listed on Xylem's catalogue alongside the newer Sonix IQ. It is the one Sensus gas meter with a documented two-wire Form A pulse output, and it carries a Measurement Canada approval number on its own product page.

• Capacity classesSonix 600-880 capacity not stated Source
  Sonix 2000 capacity not stated Source
• Accuracynot stated
• Temperature rangenot stated
• Indexelectronic
• Index noteElectronic register with 60 days of hourly interval storage per the product page. Display units, resolution and pulse weight are not published.
• Correctionnot stated
• Hazardous locationCSA C22.2 No. 213 listed on the product page; division and group not stated
• StandardsOIML R6:1989, ANSI B109.2, UL 1604 (3rd ed.), CSA C22.2 No. 213, BS EN 61107:1996, Measurement Canada PS-G-06
• Measurement CanadaApproved, approval AG-0514 Source
• PowerBattery powered; 10-year battery warranty and 15-year meter warranty per the product page
• Display showstotal
• Installnot stated
• Quantify fittotal: pulse; rate: derived from pulses
• Fit noteThe Form A pulse output can feed a LoRaWAN pulse counter for consumption; rate is derived from pulse timing. Confirm the pulse weight, and whether the utility will connect the output on a billing meter, before relying on it. The approval number AG-0514 is as stated on the Sensus page and was not independently confirmed in the Measurement Canada database.

Residential and light-commercial meter set. Installation details are not stated on the current product page.

Output signals

Price band $$ (hundreds to about $1,500)

Where to buy not stated

Listed on Xylem's Canadian Sensus catalogue; no Canadian distributor or stock status found (retrieved 2026-09-03).

Product page

Sensus's current residential/light-commercial ultrasonic gas meter: solid-state (no moving parts), dual-class 250/425 CFH metrology, integrated two-way FlexNet AMI radio option, pressure monitoring and remote shut-off. Distinct from and newer than the legacy 'Sonix' (Sonix 2000 / Sonix 600-880) line.

• Capacity classes250 CFH class 250 CFH, rated at 0.5 in W.C. differential across the meter, 6 in centre-to-centre (all connections), other Source
  425 CFH class 425 CFH, rated at 0.5 in W.C. differential across the meter, 6 in centre-to-centre (all connections), other Source
• Accuracynot stated
• Temperature rangenot stated
• Indexelectronic, reads in ft³
• Index note90-day hourly interval data logs stored onboard; dual-class metrology selectable at 250 CFH or 425 CFH (both at 1/2 in differential, per manufacturer).
• Correctionno correction of its own
• Hazardous locationClass I Division 2, Group D, T4 (per manufacturer; CSA C22.2 No. 213 also referenced on the same page, worded ambiguously as 'Class 1 Division 1' in one clause: confirm exact division/group with Sensus before specifying for a hazardous location)
• StandardsANSI B109.1, PS-G-06
• Measurement CanadaApproved, approval AG-06456 Source
• Powernot stated
• Display showsnot stated
• Installany (recommended mounting with connections up)
• Quantify fittotal: pulse; rate: no route
• Fit notePulse output exists as a listed option, but Sensus's marketing frames this meter primarily as a FlexNet AMI endpoint, not a site-telemetry source. Confirm the pulse option is actually enabled on the specific units ordered before assuming a signal is available; FlexNet-only data goes to the utility's head-end, not to Quantify, unless the utility shares interval data separately.

9.94 in L x 4.38 in W x 7.89 in H (252.5 x 111.3 x 200.4 mm); 6.3 lb (2.86 kg). About half the size and weight of a mechanical diaphragm meter plus a bolt-on AMR radio, at what Sensus describes as a comparable installed cost.

Output signals

Price band $$ (hundreds to about $1,500)

Where to buy not stated

Product page

An ultrasonic residential gas meter manufactured by Pietro Fiorentini and sold through Sensus/Xylem's own catalog with a Sensus SSM-COM FlexNet module fitted, positioned by Sensus as a secondary/backup source for 200- and 400-class residential meter applications alongside its own R-275/Sonix IQ lines.

• Capacity classes200 class (per manufacturer marketing; no CFH/differential published) capacity not stated Source
  400 class (per manufacturer marketing; no CFH/differential published) capacity not stated Source
• Accuracynot stated
• Temperature rangenot stated
• Indexelectronic
• Correctionno correction of its own
• Hazardous locationnone stated on the product page
• Standardsnot stated
• Measurement CanadaNot stated
• Powerbattery, up to 20 years per manufacturer
• Display showsnot stated
• Installnot stated
• Quantify fittotal: no route; rate: no route
• Fit noteFlexNet-only per Sensus's own description; treat the same as the SmartPoint GM 'trap case': no open signal documented for a third party to read directly.

Includes built-in emergency shut-off for seismic events and overpressure conditions. Rated compatible with biomethane and hydrogen blends up to 20% by manufacturer claim.

Output signals

Price band $$ (hundreds to about $1,500)

Where to buy not stated

Product page

Insertion thermal mass flow meter with Sierra's patented 4-sensor (QuadraTherm) technology; good branch sub-meter where a higher-accuracy read than the entry Fox/Sage lines is wanted and 15D/10D straight run is available.

• Capacity classesinsertion, up to 72" duct/pipe capacity not stated, rated at 60000 SFPM velocity limit, not a flow, turndown 100:1, 3/4in (19.1mm) insertion probe Source Sierra states 0-60,000 SFPM (0-305 SMPS) as a VELOCITY range, not a capacity. The volumetric flow that becomes depends entirely on the installed pipe inside diameter and is not tabulated on this page, so no ratedCFH is carried: 60,000 SFPM x 60 is not a flow, and publishing it as one would invent a capacity nobody stated.
• Accuracy+/-0.75% of reading above 50% of full scale (independently verified by NIST/NVLAP-accredited lab); repeatability +/-0.15% of full scale
• Temperature range-40 to 200 °C
• Indexnot stated
• Correctionno correction of its own
• Hazardous locationcFMus explosion-proof Class I Div 1 Groups B,C,D; ATEX, IECEx, GOST R, Chinese Pattern, CE; IP66 enclosure
• Standardsnot stated
• Measurement CanadaNot approved
• Power100-240VAC (0.4A RMS @230VAC) or 24VDC ±10%, 1A
• Display showsrate, total, programmable
• Installinsertion perpendicular to pipe axis, no filter stated
• Quantify fittotal: pulse; rate: 4-20 mA
• Fit note4-20mA rate is the simplest Quantify read; Modbus RTU is available if a serial gateway is on the panel already.

Straight-run distances not stated in the fetched product-page content (contrast with the 780i's stated 1D up/0D down flow-conditioned design); confirm from the 640i/780i instruction manual before sizing an install.

Output signals

Price band $$$$ ($5,000 and up)

Where to buy not stated

Not confirmed; Sierra sells through a 'Find Local Flow Expert' rep network, not listed by name on the pages fetched.

Product page · Datasheet · Manual

Our pick The accuracy leader among the sub-meters here: plus or minus 0.75 % of reading above half of full scale, independently verified by a NIST and NVLAP accredited lab, on Sierra's four-sensor QuadraTherm platform. Modbus RTU and HART are standard on both the AC and DC versions, alongside 4-20 mA for rate and temperature and a user-definable totalizer pulse, so it fits whichever read route the panel already has. It is an insertion probe for pipe or duct up to 72 inches rather than a small branch tap, its straight run is not stated on the product page the way the inline 780i's 1 up and 0 down is, and it is not Measurement Canada approved, so pull the 640i/780i manual before choosing a location and keep it off billing duty.

Inline, flanged version of the QuadraTherm platform with built-in flow conditioning; the pitch is a much shorter straight-run requirement (1D up / 0D down) than almost any other sub-meter in this guide, useful in a tight mechanical room.

• Capacity classes1"-8" inline flanged capacity not stated, rated at 60000 SFPM velocity limit, not a flow, turndown 100:1, 1 to 8, flanged, 316SS body Source Sierra states 0-60,000 SFPM (0-305 SMPS) as a VELOCITY range, not a capacity. The volumetric flow that becomes depends entirely on the installed pipe inside diameter and is not tabulated on this page, so no ratedCFH is carried: 60,000 SFPM x 60 is not a flow, and publishing it as one would invent a capacity nobody stated.
• Accuracy+/-0.5% of reading above 50% of full scale (independently verified by NIST/NVLAP-accredited lab); repeatability +/-0.15% of full scale
• Temperature range-40 to 200 °C
• Indexnot stated
• Correctionno correction of its own
• Hazardous locationcFMus explosion-proof Class I Div 1 Groups B,C,D; ATEX, IECEx; IP66 enclosure
• Standardsnot stated
• Measurement CanadaNot approved
• Power100-240VAC (0.4A RMS @230VAC) or 24VDC ±10%, 1A
• Display showsrate, total, programmable
• Installinline, any, straight run 1 D upstream, 0 D downstream, no filter stated
• Quantify fittotal: pulse; rate: 4-20 mA
• Fit noteBest pick on this page when straight run is scarce; same 4-20/pulse/Modbus read routes as the 640i.

Built-in flow conditioning gives a 1D upstream / 0D downstream requirement, the shortest in this guide.

Output signals

Price band $$$$ ($5,000 and up)

Where to buy not stated

Not confirmed; contact Sierra's rep network.

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