A small but reliable microcontroller based gas leakage sensor. This detector will not cut the gas supply as soon as a leakage takes place, but it will warn us via a red LED and a buzzer that sounds as long as the leakage occurs. A small board that contains its own power supply and regulator. The sensor is a renown and well tested device, manufactured by FIGARO, an expert in gas leakage sensors. It can detects butane, propane, and natural gas. Working green LED indicator. Operation voltage: 230VAC. Power consumption: 30 mA.