Description
The MQ 135 Air Quality Detector Sensor Module For Arduino has lower conductivity in clean air. When the target combustible gas exists, the conductivity of the sensor is higher along with the gas concentration rising. Convert change of conductivity to the corresponding output signal of gas concentration. The MQ135 gas sensor has high sensitivity to Ammonia, Sulphide and Benzene steam, also sensitive to smoke and other harmful gases. It is with low cost and suitable for different applications such as harmful gases/smoke detection.
Specifications:
Wide detecting scope
Fast response and High sensitivity
Stable and long life
Operating Voltage : +5V
Detect/Measure NH3, NOx, Alcohol, Benzene, Smoke, CO2, etc.
Sensitive for benzene, alcohol, smoke
Analog output voltage: 0V to 5V
Digital output voltage: 0V or 5V (TTL Logic)
Preheat duration 20 seconds
Can be used as a Digital or analog sensor
The Sensitivity of Digital pin can be varied using the potentiometer
Package Includes:
1 x MQ-135 Air Quality Gas Sensor Module








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