Winsen Electronics manufacture air quality sensor and VOC sensor MQ135 for IAQ monitor application.
Sensitive material of MQ135 gas sensor is SnO2, which with lower conductivity in clean air. When target pollution gas exists, the sensors conductivity gets higher along with the gas concentration rising. Users can convert the change of conductivity to correspond output signal of gas concentration through a simple circuit.
MQ135 gas sensor has high sensitivity to ammonia gas, sulfide, benzene series steam, also can monitor smoke and other toxic gases well. It can detect kinds of toxic gases and is a kind of low-cost sensor for kinds of applications.

MQ135 gas sensor hashigh sensitivity to ammonia gas, sulfide, benzene series steam, also can monitor smoke and other toxic gases well. It can detect kinds of toxic gases and is a kind of low-cost sensor for kinds of application

Applications:

It is widely used in domestic gas alarm, industrial gas alarm and portable gas detector.

Note: For more info Refer manual

Features:

It has good sensitivity to toxic gas in wide range, and has advantages such as long lifespan, low cost and
simple drive circuit &etc.

Package Includes:

1 x Winsen MQ135 Semiconductor Sensor for Air Quality