MQ131 Gas Sensor

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.

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.