MQ-135 Gas Sensor Module for Air Quality

MQ-135 Gas Sensor Module can detect gases like Ammonia (NH3), sulfur (S), Benzene (C6H6), CO2, and other harmful gases and smoke. Similar to other MQ series gas sensor, this sensor also has a digital and analog output pin. When the level of these gases go beyond a threshold limit in the air the digital pin goes high. This threshold value can be set by using the on-board potentiometer. The analog output pin, outputs an analog voltage which can be used to approximate the level of these gases in the atmosphere.

Specifications :

• Operating Voltage: 2.5V to 5.0V
• Power consumption: 150mA
• Detect/Measure: NH3, Nox, CO2, Alcohol, Benzene, Smoke
• Typical operating Voltage: 5V
• Digital Output: 0V to 5V (TTL Logic ) @ 5V Vcc
• Analog Output: 0-5V @ 5V Vcc

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 1000pp