Product Description: When the flammable gas (cooking methane/natural gas/camping propane) leakage exceeds the standard, the gas detector will alarm at 100dB. It cannot detect toxic gases such as carbon monoxide. Widely used in restaurants, kitchens, hospitals, hotels, oil factories, garages, gas stations, etc. Function: The gas detector is mainly used to detect natural gas (main component: methane), liquefied petroleum gas (main component: propane, butane) and town gas (alkanes, olefins, aromatics). Once the concentration exceeds 3% LEL, an alarm will sound and flash red. Features: Plug-in gas alarm designed for home use. Mains powered, very simple and convenient to install. The detector is anti-mold, anti-insect and anti-corrosion. ABS plastic frame, easy to clean. Uses ≤3 watts of electricity, saving a lot of energy. Press and hold the cigarette lighter switch located at the air inlet of the methane detector, then slowly deflate (do not open when deflating). When the concentration