MQ4 MQ-4 natural gas methane sensor Modul MQ4

MQ4 MQ-4 natural gas methane sensor Modul MQ4 Introduction The MQ4 is used in gas leakage detecting equipment in consumer and industry markets,this sensor is suitable for detecting CH4,Natural gas, LNG, avoid exposure to alcohol, cooking fumes, and cigarette smoke. The sensitivity can be adjusted by the potentiometer. Specification Power supply needs: 5V Interface type: Analog Pin Definition: 1-GND 2-Digital-Output 3-Analog-Output 3-VCC High sensitivity to CH4，Natural gas Small sensitivity to alcohol, smoke Fast response Stable and long life Simple drive circuit Size: 40x20mm