MQ-135 Gas Sensor (Ammonia, Sulfide, Benzene)

MQ135 gas-sensitive material is used in gas sensors in clean air in the lower conductivity of tin dioxide (SnO 2) . When there is pollution in the environment of gas sensors, conductivity sensor with the increase in air pollution in the gas concentration increases. Using a simple circuit to convert the change in conductivity of the gas concentration corresponding to the output signal.

MQ135 gas sensor for ammonia, sulfide, benzene vapor high sensitivity, smoke and other harmful gases monitoring is also very good. This sensor can detect a variety of harmful gases, is a low-cost sensors for a variety of applications.

Feature                                                                                                                              

* in a wide concentration range of harmful gases has good sensitivity                                                  

* for ammonia, sulfide, benzene and other atmosphere high sensitivity                                      

* Long life, low cost                                           

* Simple drive circuit can