MQ-135 Gas Sensor Module For NH3, Alcohol, benzene, smoke , CO2 Detector Module
The MQ-135 gas sensor module is a device that is used for sensing a range of gases, including ammonia (NH3), sulfur dioxide (SO2), and carbon monoxide (CO). It is based on a metal oxide semiconductor (MOS) gas sensor, which uses a semiconductor material to detect gases.
Product details
Features:
- This gas sensor works between 2.5V to 5.0V.
- Uses around 150mA of current while running.
- It can detect gases like NH3, NOx, CO2, alcohol, benzene, and smoke.
- When powered at 5V, it gives out a digital signal from 0V to 5V in TTL logic.
- it also provides an analog output in the same voltage range. Typically, it operates at 5V.
Pinout:

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