MQ2 Flammable Gas and Smoke Sensor

For Sensor

1. H -Pins Out of the two H pins, one pin is connected to supply and the other to ground

2. A-Pins The A pins and B pins are interchangeable. These pins will be tied to the Supply voltage.

3.B-PinsThe A pins and B pins are interchangeable.   One pin will act as output while the other will be pulled to ground.

MQ – 2 is a flammable gas and smoke sensor detects the concentrations of combustible gas in the air and outputs its reading as an analog voltage.

Application

•    They are used in gas detecting equipment for smoke and flammable gasses in family and industry or car.
•    Portable Gas Detector.

Package Content :

1 x MQ – 2 Smoke and Flammable Gas sensor

Datasheet available here.