MQ135 Air Quality Gas Sensor Module

About MQ135 Air Quality Gas Sensor Module

• The MQ-135 Gas sensor 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.
• 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