Target: CH4 methane, Natural Gas, LPG Gas and other combustible gas
Detection principle: Ultrasonic
Characteristics: Low pressure absorption, No mechanical wear, Good repeatability

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Ultrasonic gas meter is a fully electronic speed metering device developed and produced by our company that uses ultrasonic measurement. It is characterized by non-contact, no moving parts, large range ratio, good linearity, high reliability and high measurement accuracy. 


Home use Residential natural gas flow meter, IC card ultrasonic gas flow meter, household gas flow control


  • Low pressure absorption
  • No mechanical wear
  • Good repeatability
  • Ultra compact
  • No moving parts
  • High measuring precision with more stationary error curve
  • Temperature and pressure compensation
  • Stable operation and long service life without noise
  • Non-magnetic element and measurement not easily affected by magnetic field


Type G1.6 G2.5 G4
Qmax(m3/h) 2.5 4 6
Qmin(m3/h) 0.016 0.025 0.04
Qstart(dm3/h) 3 5 5
Range ratio 200:1
Accuracy class 1.5
Working voltage 6V
Battery AA alkaline battery (NO. 5)/ lithium battery3.5V
Working temperature ﹣15℃~50℃
Maximum working pressure 30kPa
Average working current ≤1mA
Quiescent current ≤20μA
Pressure absorption ≤140Pa
Meter fittings central distance (mm) 130
Degree ofprotection IP65
Measuring resolution 0.001m³
Valvedurability >10000 cycles
Temperature and pressure compensation Optional

* The description and specifications might be changed without notice. Please contact us for the latest information before placing orders.

Technical Support:

Customized technical design and function, LOGO and package are available without extra charge (including molding fee) for mass volume.

The sensors don't have sleeping mode. It can be set in program if needed.

All Winsen products go through strict inspections and tests to make sure they are 100% qualified before shipping out.

The sensor has been fully tested (not calibrated) before leaving the factory. However, after transportation and storage, the environment conditions change, and the surface of the sensor absorbs moisture, mixed gas, pollution matters, etc. It is recommended that customers perform aging and calibration after sensors become stable according to the program and use occasions of the whole device.

15﹪-90﹪RH without condensation,greater or less than this range or long-term high temperature and high humidity will affect the life of the sensor.

Our sensors are certified with CE, 3C, ROHS, anti-explosion, fire prevention, and coal mining safety according to different applications. And we provide assistance for new certification.

Many factors can cause the sensor to fail such as broken wires in transportation, poisoning, falling off of the sensitive material, damage to the heating wire (device), etc. Please find specific cause in each category with Winsen’s aftersales.

Winsen provides professional consultation and service before and after sales. We will recommend the best fitting sensor for your demand. If you have any problem, don’t hesitate to email us to

Due to high volume of daily incoming emails and time zone difference, we may not be able to reply your emails immediately. But we will reply to your inquiry in 24 business hours.