MQ-135 Air Quality Gas Sensor

MQ-135 Hazardous Gas & Air Quality Sensor Module

The MQ-135 is designed for indoor air quality (IAQ) monitoring systems. Sensitive to ammonia (NH3), nitrogen oxides (NOx), alcohol, benzene, smoke, and carbon dioxide, it provides early warning of harmful industrial and domestic atmospheric pollutants.

Specifications

• Detectable Gases: Ammonia, Nitric Oxide, Alcohol, Benzene, Smoke, CO2
• Detection Range: 10 to 1,000 ppm
• Operating Voltage: 5.0V DC
• Outputs: Analog real-time voltage and Digital alarm threshold
• Internal Heater: 31Ω ± 3Ω internal heating coil
• Applications: Domestic air purifiers, HVAC ventilation, AQI monitors