Description Sensitive for alcohol, ethanol Fast response and recovery Adjustable sensitivity Signal output indicator Output voltage boosts as the concentration of the measured gases increases View more What's Included MQ-3 Gas Sensor × 1 4-pin custom connector jumper wire × 1 Specifications Power: 2.5V ~ 5.0V Dimension: 40.0mm * 21.0mm Mounting holes size: 2.0mm Applications Car alcohol alarm Breathalyzer
