The product is a smart combustible gas detector with sound prompt alarm, supporting display of the gas concentration. When trigger the gas detector, it will alarm with build-in siren. This detector adopt semiconductor sensor which is stable and reliable. It keeps the place safe from the threats of combustible gas (such as liquefied petroleum gas, natural gas, methane, etc.). It's widely used in kitchen, living room, garage, shopping mall, hotel, restaurant, office building, school, bank, library, computer house and storehouse etc. where has no water vapor and has threats of combustible gas.