MQ-2 Smoke and Gas Sensor Module

Use for Detecting: Combustible gas such as LPG, butane, methane, alcohol, propane, hydrogen, smoke, etc*Output: Digital DO: 0.1V / 5V [TTL Switch] with DO LED display and Output: Analog AO: 0.1 to 0.3 V [ Higher Value Means Higher pollution ]*Application: Domestic gas leakage detector, industrial combustible gas detector, portable gas detector