MQ135 Air Quality & Hazardous Gas Detection Sensor Module

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CreateLabz StoreSKU: 20-055

₱109 ₱215

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In stock (7 units), ready to be shipped


The MQ135 Air Quality Sensor Module a low-cost semiconductor sensor that can detect the presence of Ammonia (NH3), Mono-nitrogen oxides (NOx), Alcohol, Benzene, Smoke, Carbon-dioxide (CO 2), etc.  This module provides both digital and analog outputs. MQ135 Air Quality Sensor module can be easily interfaced with Microcontrollers, Arduino Boards, Raspberry Pi, etc. Suitable for home or industrial on LPG, natural gas, coal gas monitoring devices.


  • The main chip: MQ135 gas sensing probe
  • Operating voltage: DC 5V
  • Power (current) : 150mA
  • DO Output: 0.1V/5V
  • AO Output: 0.1-0.3V
  • Signal output indicator instructions
  • Dual signal output (analog output, and TTL level output)
  • TTL output valid signal is low; (output low signal light, which can be accessed microcontroller IO port)
  • Analog output with increasing concentration, the higher the concentration, the higher the voltage
  • Sulfide, benzene Department of steam, smoke and other harmful gases with high sensitivity
  • Has a long life and reliable stability
  • Rapid response recovery characteristics

A hazardous gas detection apparatus for the family, the environment, suitable for ammonia, aromatic compounds, sulfur, benzene vapor, smoke, and other gases harmful gas detection, gas-sensitive element test concentration range: 10 to 1000pp

Package included:
1x  MQ-135 Air Quality & Hazardous Gas Detection Sensor       

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