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

SKU: 180858

4.51 4.51 Piece 4.51 USD

¥ 33.00

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  • Size: 32mm X22mm X30mm length * width * height  

  • The main chip: LM393, MQ135 gas sensing probe  

  • Operating voltage: DC 5V  

  • Features:  

  • 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 1000ppm