LPG Natural Gas Sensor MQ2

This gas sensor module is made using MQ5, a low cost semiconductor sensor which can detect the presence of LPG, LNG, Natural and Town gases at concentrations from 200 to 10,000 ppm. The sensitive material used for this sensor is SnO2, whose conductivity is lower in clean air. It’s conductivity increases as the concentration of sensing gases increases. It has also some sensitivity to smoke and alcohol. This module provides both digital and analog outputs. MQ5 LPG natural gas sensor module can be easily interfaced with Microcontrollers, Arduino Boards, Raspberry Pi etc.