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MQ2 Smoke and Flammable Gas Module    This module uses MQ2 Smoke & Flammable gas sensor as a gas sensing element. It requires no external components just plug in Vcc & ground pins and you are ready to go.For Digital output the threshold value can be easily set by an on-bo..

The CH4 (Methane) Gas Sensor is used in gas detection equipment for detecting Methane in home, automotive or industrial settings. This line of sensors can be interfaced with any microcontrollers, and would be a good addition to any projects needing to sense the presence of Methane.  Featur..