MQ4 Methane Natural Gas Sensor

MQ4 Methane Natural Gas Sensor The MQ-4 Gas Sensor is a semiconductor gas sensor designed to detect methane (CH?) and natural gas in the air. It uses a tin dioxide (SnO?) sensing element whose resistance changes when exposed to methane gas, enabling detection of gas concentration changes. The sensor includes an integrated heater that raises the sensing material to its optimal operating temperature and provides an analog output that varies with gas concentration. The MQ-4 is commonly used in basic gas detection systems, safety monitors, and embedded electronics projects.Click here to view related productsFeaturesSensitive to methane (CH?) and natural gasHigh sensitivity to target gasesProvides an analog output proportional to gas concentrationRequires integrated heater for stable operationSimple interfacing with microcontrollers (ADC input required)Compact size suitable for prototyping and embedded systemsLong service life and low costApplicationsMethane/natural gas leak detection in homes, kitchens, and pipelinesGas leak alarms and safety monitoring systemsPortable gas detection devicesEnvironmental air quality sensingIndustrial combustible gas monitoring systemsSmart home automation gas alertsEducational and hobbyist electronics projectsEmbedded IoT gas sensing applications*Product image for illustration purposes only, actual product may vary.