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Residential Ultrasonic Gas Meter Module

Based on ultrasonic gas flow sensor technology, USM-G2.5M/G4M adopts patented V shape gas flow channel, the effective distance between two transducers are long, which facilitates the measurement accuracy, it's also anti-contamination that guarantees high stability. USM-G2.5M/G4M is used for assembling residential natural gas meters.

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  • Stable flow field distribution;
  • High sensitivity and accuracy with intelligent software algorithm for Air,100% CH4 and different natural gases;
  • Low pressure loss due to absence of obstructing objects within flow path;
  • Low power consumption;
  • UART/TTL interface with direct output for connection;
  • Small footprint which permit compact designs;
  • Compliant to OIML R137 and EN14236 class 1.5.


CO2 Sensor CM1106-C
Measurement Range USM-G2.5M: 0.025~4 m³/h [0.88~ 141.26 ft³/h]
USM-G4M: 0.04~6 m³/h [1.41~ 211.88 ft³/h]
Accuracy Class 1.5
Error Qmin≤Q<0.1Qmax: ±3%;
Power Supply 3~3.6VDC
Power Consumption MAX: 350mAh/year (40uA/h) (VCC=3.6V)(at: 25℃ or 77℉)
Temperature Measurement YES
Working Pressure 0~20kPa / 0~2.90psi
Pressure loss 200pa / 0.029psi or less (at Qmax)
Working Temperature -25℃~55℃ / -77℉~131℉
Storage Temperature -30℃~70℃ / -86℉~158℉
Working Humidity ≤95% RH without condensation
Note: Higher pressure gas meters can be customized, please consult for more information.
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