MQ-135 Air Quality Sensor /Hazardous Gas Detection Module For Arduino

SKU: 180855

1.55 1.55 Piece 1.55 USD

¥ 11.00

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  • Size: 32X20X22mm/1.25*0.78*0.86” 

  • 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