Air Pollution Sensor

Size: 32mm X22mm X30mm chip:MQ135 gas-sensing detector Working voltage: DC 5V analog output increases with gas concentration, the higher the concentration,the higher the voltage . high sensitivity with the sulfides, benzene vapor, and other harmful smoke gases ; with a long life and reliable stability; the probe plug design for easy testing. Used for family, Surrounding environment noxious gas detection device, Apply to ammonia, aromatics, sulfur, benzene vapor, and other harmful gases/smoke, gas detection, tested concentration range: 10 to 1000ppm FEATURES Wide detecting scope Fast response and High sensitivity Stable and long life Simple drive circuit APPLICATION They are used in air quality control equipments for buildings/offices, are suitable for detecting of NH3,NOx, alcohol, Benzene, smoke,CO2 ,etc.