MQ-135 Air Quality (Benzene, Alcohol, smoke) Gas Sensor


This is a highly responsive and very sensitive air sensor apparatus capable of detecting ammonia, sulfur, aromatic compounds, benzene vapor, carbon monoxide gas, smoke and other gases. It is suitable to use in gas monitoring devices for factories and harmful gas detector for your home.

MQ-135 air sensor module is design for detecting wide range of gases including MQ, ammonia, benzene, and hydrogen at concentration from 10 to 10,000 ppm.


  • Operating Voltage: 5 V
  • PCB Size: 32 x 20 x 24 mm
  • Output: 0 V to 5 V (analog)
  • Two output signals (analog and TTL)

Package Included:

1 x MQ – 135 Air Quality Gas Sensor

30 in stock