Winsen Electronics manufactures an air quality sensor and VOC sensor MQ138 for IAQ monitor applications. The sensitive material of the MQ138 gas sensor is SnO2, which with lower conductivity in clean air. When VOC gas exists, the sensors conductivity increases, and the gas concentration rises. Users can convert the conductivity change to the corresponding output signal of gas concentration through a simple circuit. MQ138 gas sensor has a high sensitivity to toluene, acetone, alcohol, and methanol, and also can monitor hydrogen and other organic vapour well. It can detect kinds of organic gases and is a kind of low-cost sensor for varieties of applications.

Applications :

Package Includes:

1 x Winsen MQ138 VOC Gas Sensor