Arduino MQ-2 Analog Smoke LPG CO Gas Leakage Sensor Detector

Description
The Analog Smoke/LPG/CO Gas Sensor(MQ2) module utilizes an MQ-2 as the sensitive component and has a protection resistor and an adjustable resistor on board. The MQ-2 gas sensor is sensitive to LPG, i-butane, propane, methane, alcohol, Hydrogen and smoke. It could be used in gas leakage detecting equipments in family and industry. The resistance of the sensitive component changes as the concentration of the target gas changes.

Features
Power supply needs: 5V
Fast response and High sensitivity
Wide detecting scope
Simple drive circuit,Stable and long life

Application
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Domestic gas leakage detector
Industrial gas detector
Portable gas detector

Document
MQ-2 Datasheet: http://www.haoyuelectronics.com/Attachment/MQ-2/MQ-2.pdf

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