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Quick Details

  • Place of Origin: Zhejiang, China (Mainland)
  • Brand Name: Sapphire
  • Model Number: ICWG 2.5S
  • type: intelligent diaphragm gas meter
  • function: wireless remote control & prepaid IC card
  • nominal flowrate: 2.5 m3/h
  • maximum flowrate: 4 m3/h
  • minimum flowrate: 0.025 m3/h
  • material: steel case
  • color: white grey
  • categoty: amr gas meter
  • cyclic volume: 1.2 dm3/h

Packaging & Delivery

Packaging Details 4 pcs/carton
carton size: 400mm*330mm*260mm
Delivery Time 2 weeks upon payments

Sapphire wireless remote control IC card meter is the high-tech measuring meter of a new generation which accords with standards of GB/T6968-2011<diaphragm meter>, CJ/T112-2008<IC card diaphragm gas meter>and JG/T162-2009<residence remote data transmission system>.

This amr gas meter can thoroughly change the traditional payment model of low data reading efficiency, errors, long cash withdrawal cycle and labor costing. It is a pre-paid meter with IC card as a media. It possesses varieties of functions of accurate measurement, reliable performance, simple operation, convenient maintenance and exclusive matching set with one card-one meter.

Through low energy consuming wireless communication technology this meter can automatically read and monitor meters’ data. It also has high cost performance and especially suitable for household gas measurement.  AMR gas meter is one of the best gas measuring instruments for modernized gas management.


Main performance index

Power supply

DC6V (4 5 # batteries / 6V lithium batteries), the service life: dry batteries ≥ 10 months, lithium batteries is optional 

Specification diameter(mm) 


Measurement grade

B grade

Power-down data retention time

≥10 years

Measurement signal

Reed pulse or direct module signal

Wireless communication frequencies

Using the ISM-470MHZ frequency band, no need to apply  new frequency, in line with the Authority’s technical requirements of micro-power on the short distance



Transmit Power


Receiver sensitivity


Wireless communication rate


Wireless communication distance

1.2 km, open area


Static current:≤15uA

data Security

8-bit and checking & encryption algorithms, secure and reliable data transmission

Working environment

Temperature:  -25°C~70°C,relative humidity: RH≤93%

Design Reference Standards

- "GB/T6968-2011 Diaphragm Gas Meters"
- JG/T162-2009 "residential remote meter reading system"
-CJ/T188-2004 "household meters data transmission technical conditions"

- "Micro-power (short distance) radio equipment Interim Provisions"

Maximum reading


Minimum reading


Air tightness

≤50Kpa no leakage

Confidentiality of IC card

One card for one meter, no copies.

Life time for IC card

≥100,000 times


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China (Mainland) | Manufacturer
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