MQ135 MQ-135 Air Quality Sensor Hazardous Gas Detection Module For Arduino New

Description

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Detail
1. Size: 32mm X22mm X30mm length * width * height
2. The main chip: LM393, MQ135 gas sensing probe
3. Operating voltage: DC 5V
Features:
1. Signal output indicator instructions;
2. Dual signal output (analog output, and TTL level output);
3. TTL output valid signal is low; (output low signal light, which can be accessed microcontroller IO port)
4. Analog output with increasing concentration, the higher the concentration, the higher the voltage;
5. Sulfide, benzene Department of steam, smoke and other harmful gases with high sensitivity;
6. Has a long life and reliable stability;
7. Rapid response recovery characteristics;
Applications:
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
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