Winsen MEMS Catalytic H2 Sensor-CMV-2021D


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SKU: 1659577
  1. Model: CMV-2021D’
  2. Sensor Type: MEMS Catalytic
  3. Working voltage(V): 3.0±0.1
  4. Working current(mA): 14±1.0


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1 Year Warranty
15 Days Warranty Against Sealed Product
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Brand: Winsen
Category: Gas and Dust Sensor

CMV-2021D catalytic hydrogen sensor adopts the MEMS process, works according to the principle of catalytic combustion effect, and is paired by a detection element and a compensation element to form an arm of the bridge, when the resistance of the detection element increases, the output voltage of the bridge changes, the voltage variable increases proportionally with the increase of hydrogen concentration, and the compensation element plays a reference and temperature and humidity compensation role.

Note: The image may vary in terms of size, shape, and color.


  1. Hydrogen-powered vehicle
  2. Hydrogen energy preparation
  3. Energy storage battery/power station
  4. Hydrogen energy transport and use
  5. Hydrogen detection in other scenarios


  1. The bridge output is linear
  2. Quick response
  3. Good repeatability and selectivity
  4. Good stability and reliability
  5. Low power consumption
  6. Excellent anti-interference ability

Package Includes:

1 x Winsen MEMS Catalytic H2 Sensor-CMV-2021D

SKU: 1659577 Category:


Sensor Type

MEMS Catalytic

Working Voltage


Working Current(mA)


Linearity (Error)


Storage Environment(℃)

-40 to +85℃,

Response Time(s)


Shipping Weight 0.002 kg
Shipping Dimensions 7 × 7 × 1 cm
15 Days Warranty Against Sealed Product

This item is covered with a standard warranty of 15 days from the time of delivery against manufacturing defects only. This warranty is given for the benefit of Robu customers from any kind of manufacturing defect.  Reimbursement or replacement will be done against manufacturing defects.

What voids the warranty:

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

Warranty  Against Sealed Product:

This product comes with manufacturer seal so, warranty Policy shall cover only those issues pertaining to the manufacturing defects in the product. In any other case, No return will be accepted if the seal is broken.

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Country Of Origin: China