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The Grove - Gas Sensor (MQ9) module is useful for gas leakage detecting(in home and industry). It can detect LPG, i-butane, methane, alcohol, Hydrogen, smoke and so on. Measurements can be taken as soon as possible based on its fast response time. Also the sensitivity can be adjusted by the potentiometer.

Features:

• High sensitivity to Combustible gas in wide range
• Stable performance, long life, low cost
• Fast response
• Wide detection range
• Simple drive circuit

Documents:

• Eagle Files
• MQ9 Datasheet
• Seeed Wiki Page