MEMS Catalytic Hydrogen Sensor CMV-2021D

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CMV-2021D catalytic hydrogen sensor adopts MEMS technology and works according to the principle of catalytic combustion effect. It consists of a pair of detection elements and compensation elements to form one arm of the bridge. When encountering hydrogen, the resistance of the detection element increases, and the output voltage of the bridge circuit changes. The voltage variable It increases proportionally with the increase of hydrogen concentration, and the compensation element acts as a reference and compensation for temperature and humidity.


* The output voltage is linear
* quick response
* Good repeatability and selectivity
* Components work stably and reliably
* Low power consumption
* Excellent anti-interference ability 

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Specification Product Size

Technical Data Sheet

Model CMV-2021D
Product type MEMS Catalytic Hydrogen Sensor
Standard package plastic package
Working voltage (V) 3.0±0.1
Operating current (mA) 14±1.0
Sensitivity (mV) 1% H2 30~60
Linearity ≤5%
Measuring range (%LEL) 0~100
Start time in air ≤0.5s
Response time (90%) ≤2s
Recovery time (90%) ≤1s
Working environment -40℃~+85℃,< 95%RH
Storage environment -40℃~+85℃,< 95%RH




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As a pioneer in gas sensor based solutions with the advanced processes, technologies and products, Winsen offers a wide range of gas sensors:


As a pioneer in gas sensor based solutions with the advanced processes, technologies and products, Winsen offers a wide range of gas sensors:


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