MQ-2 gassensor module has high sensitive to LPG, Propane and Hydrogen, also could be used to Methane and other combustible steam, it is with low cost and suitable for different application. Working voltage: DC 5V, DOUT: TTL output, AOUT: Analog output, Preheat time: Over 20s.
MQ-3 GasSensor module, sensitive to Alcohol, Ethanol concentrations. Output is proportional to concetration of Alcohol / Ethanol. Working voltage: DC 5V, DOUT: TTL output, AOUT: Analog output, Preheat time: Over 20s.
MQ-7 - MQ7 GasSensor module, sensitive to Carbon Monoxide. Output is proportional to concetration of Carbon Monoxide. Working voltage: DC 5V, DOUT: TTL output, AOUT: Analog output, Preheat time: Over 20s.
This LPG GasSensor (MQ6), ideal sensor for use to detect the presence of a dangerous LPG leak in your Home, car or in a service station, storage tank environment. The sensor can also sense iso-butane, propane, LNG and cigarette smoke.
MQ-2 gassensor has high sensitive to LPG, Propane and Hydrogen, also could be used to Methane and other combustible steam, it is with low cost and suitable for different application.
MQ-135 Air quality sensor is for detecting a wide range of gases, including NH3, alcohol, benzene, smoke and CO2. Ideal for use in office or factory with simple drive and monitoring circuit. Working voltage: DC 5V, DOUT: TTL output, AOUT: Analog output, Preheat time: Over 20s.