Flammable Gas Sensor. Suitable for detecting of CH4,Natural gas. LNG, avoid the noise of alcohol and cooking fumes and cigarette smoke. #commonpartslibrary #sensor #gassensor #integratedcircuit

Carbon Monoxide Sensor. Suitable for sensing CO concentrations in the air. MQ-7 can detect CO-gas concentrations anywhere from 10 to 500ppm. #commonpartslibrary #sensor #gassensor #integratedcircuit