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

SKU: 180858


¥ 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