The MQ-214 Methane Gas Sensor is a reliable and efficient device that detects the presence of flammable gases such as methane, natural gas, liquefied petroleum gas, hydrogen, and cigarettes. It is highly sensitive and responds quickly to any potential gas leaks, providing an early warning to keep you safe. The sensor operates with low power consumption, ensuring it works for an extended period of time. With an input voltage of 4.5-5V/DC, the MQ-214 can detect concentrations of methane, natural gas, and liquefied petroleum gas in the range of 500-10000 ppm, while hydrogen can be detected in the range of 500-10000 ppm. The sensor has an analogue interface type and can provide an accurate reading of the gas concentrations in the environment.