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MQ131 Gas Sensor


The sensitive material of the MQ131 gas sensor is SnO2, which with lower conductivity in clean air. The sensor’s conductivity is higher along with the gas concentration rising.

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The sensitive material of the Mq131 Gas Sensor is WO3, which with lower conductivity in clean air. When the ozone gas exists, the sensor’s conductivity gets lower along with the gas concentration rising. Users can convert the conductivity change to the corresponding output signal of gas concentration through a simple circuit. MQ131 has a high sensitivity to ozone and also has a sensitivity to strong oxides such as Cl, NO & etc.

It responds oppositely to organic interference gases.

Mq131 Sensor Detection Module Features:
It has good sensitivity to ozone in a wide range and has advantages such as a long lifespan, low-cost simple drive circuit &etc.

Main Applications:
It is widely used in

  • domestic ozone concentration alarms,
  • industrial ozone concentration alarms
  • portable ozone concentration detectors.

 

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