If you want to detect different types of gases, you will need sensors. If you need any data on sensitive material then, the MQ-135 Gas Sensor is quite good solution. The MQ-135 sensor is a  gas sensor module that incorporates MQ-135, designed for air quality monitoring. It can be used to measure benzene, alcohol, and smoke, then generate digital signals for triggering air treatment devices. The MQ-135 is used in Air Quality Monitors in consumer and industry applications, this sensor is suitable for detecting benzene, alcohol, and smoke. Avoid the noise of LPG, natural gas, and coal gas. The sensitivity can be adjusted by the potentiometer.MQ-135 gas sensor applies SnO2 which has lower conductivity in clear air as a gas-sensing material. In an atmosphere where there may be polluting gas, the conductivity of the gas sensor raises along with the concentration of the polluting gas increases  The sensitive materials of the MQ-135 gas sensor are benzene, alcohol, and smoke. When the target combustible gas exists, The sensor’s conductivity is higher along with the gas concentration rising. Please use a simple electro circuit, Convert the change of conductivity to the corresponding output signal of gas concentration.

Specifications :

Features :

• Sensitivity to Ammonia, Sulphide and Benzene steam
• Sensitive for benzene, alcohol, smoke
• Adjustable sensitivity 

Package Include :

1 x MQ-135 Air Quality Gas Sensor