Alcohol Gas Sensor MQ-3 + Sensor Carrier

This semiconductor gas sensor detects the presence of alcohol gas at concentrations from 0.05 mg/L to 10 mg/L, a range suitable for making a breathalyser. The sensor’s simple analog voltage interface requires only one analog input pin from your microcontroller.

Shipping list: 1 x Alcohol Gas Sensor MQ-3, 1 x MQ Gas Sensor Carrier