MQ135 – Air Quality Gas Sensor Module

SKU E-269

115.00 +GST

The delivery time will depend on the product availability as well as your location. Pan India delivery will take around 3 to 4 days.

We do not offer any returns. If you genuinely have received a faulty product, please contact us.


MQ-135 is sensitive air quality sensor that detects NH3, NOx, alcohol, benzene, smoke, CO2, etc.

Heater voltage 5V, 31 ohm (40mA consumption)

The board has digital and analog output.


  • Detects NH3, NOx, alcohol, benzene, smoke, CO2, etc.
  • Operating voltage 5V
  • Operating current 40mA
  • Both digital and analog output
  • Popular sensor – a lot of examples available for different platforms
  • Port explanation : AO for analog output, DO for digital output, GND for ground, VCC for 5V voltage input

Additional Information