MQ135 Air Quality Sensor Hazardous gas Detector

• The main chip: LM393, MQ135 gas sensing probe
• Operating voltage: DC 5V
• 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 other harmful gases with high sensitivity
• Has a long life and reliable stability
• Rapid response recovery characteristics
• gas-sensitive element test concentration range: 10 to 1000ppm

MQ135 Air Quality Sensor Hazardous gas Detector

• The main chip: LM393, MQ135 gas sensing probe
• Operating voltage: DC 5V
• 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 other harmful gases with high sensitivity
• Has a long life and reliable stability
• Rapid response recovery characteristics
• gas-sensitive element test concentration range: 10 to 1000ppm