MQ-135 Air Quality/Pollution Sensor – Arduino Compatible


The MQ-135 air quality and pollution sensor detects hazardous gases such as  benzene, alcohol, smoke, CO2, NH3 and NOx(Nitrous Oxides) in the air. Analog out put can be interfaced directly to ADC of a microcontroller.

  • 5V Operation.
  • High sensitivity and response time.

Sample Applications: This sensor can be used to build air quality sensing devices for indoor and outdoor applications)


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