Gas Sensor

MQ-4 gas sensor is a combustible gas sensor, which can detect the concentration of combustible gas in the environment. Its working principle is based on the change of electrical properties of semiconductor gas sensitive materials. When there is combustible gas (such as methane, propane, butane, etc.), the gas sensitive materials inside the sensor will react with the gas, resulting in changes in the resistance value of the material. It is widely used in domestic and industrial fields in methane leakage detection, gas leakage alarm and gas detection. Click to explore: Gas Sensor Product Doc Parameter Specification Parameters Value/Description Operating voltage 5V Operating temperature -20 C~+80 C Concentration detection 300~10000ppm Output signal Analog signal Size 4.72cm*2.38cm