Analog Alcohol Sensor[MQ3]

Analog Alcohol Sensor[MQ3] Introduction The analog gas sensor - MQ3 is suitable for detecting alcohol, this sensor can be used in a Breathalyser.It has a high sensitivity to alcohol and small sensitivity to Benzine. The sensitivity can be adjusted by the potentiometer. Notice:The new version of analog sensor port pin mapping has been changed as the following two features.Please check thetips for changing sensor cable pin mapping while using the I/O Expansion shield. We will continue to update. For the inconvenience caused, please understand. Improvement List - Standard assembling structure (Times-of-5mm Center distance between four 3mm mounting holes) - Easily recognitive interfaces of sensors ("A" for analog and "D" for digital) - Icons to simplely illustrate sensor function - High quality connector & potentiometer - Immersion gold surface Specification - Power supply: 5V - Interface type: Analog - High sensitivity to alcohol and small sensitivity to Benzine - Fast response and High sensitivity - Stable and long life - Simple drive circuit - Size: 36.4x26.6mm Shipping List - Analog Gas sensor (MQ3) x1 - Analog Cable x1 - Acrylic Base(with nylon screws) x1