FTCBlock 3pcs Alcohol Gas Sensor - MQ-3 for DIY Projects Arduino STM32 Raspberry Analog and Digital Out MQ-3 …

Features: Sensitive for alcohol vapors, ethanol (SnO2)? With analog and digital outputs - sensor has 2 outputs: digital output is a certain level of gas concentration, or analog output, which gives the actual value of the hydrogen concentration. Sensitivity can be adjusted by a potentiometer. Gas Sensor Detector Module can be used in the gas leakage monitoring device of homes and factories, it’s suitable for the detection of liquefied gas, butane, propane, methane, smoke, etc. Package included: 3 x FTCBlock Alcohol gas Sensor - MQ-3