MQ135 Air Quality sensor module

 MQ135 for IAQ monitor applications. The sensitive material of the MQ135 gas sensor is SnO2, which has lower conductivity in clean air. When target pollution gas exists, the sensor’s conductivity gets higher along with the gas concentration rising. Users can convert the change of conductivity to correspond to the output signal of gas concentration through a simple circuit. MQ135 gas sensor has high sensitivity to ammonia gas, sulfide, benzene series steam and can also 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.
Detection Gas: ammonia, sulfide, benzene series steam
Detection Range: 10～1000ppm( ammonia gas, toluene, Hydrogen, smoke)
Application: IAQ Monitor, Domestic gas alarm