Description Simple to use gas sensor Suitable for detecting LPG, i-butane, propane, methane ,alcohol, Hydrogen, smoke Used in gas leakage equipment in consumer and industial market High sensitivity and fast response time Sensitivity can be adjusted by the potentiometer View more Dimensions Size: 40 x 20 mm Links PDF File Specifications Fast response and High sensitivity Interface Type: Analog Pin Definition: 1-Output 2-GND 3-VCC Stable and long life