RV & Home 3-in-1 Gas Detector - Carbon Monoxide/Propane/Natural Gas Alarm With 10-Year Lifespan, Early Warning, 12V DC & USB-C Power, Compact Design For RV, Camper, Trailer, Home Safety

AC direct plug-in design Power-saving design when there is no dangerous gas in the environment, the device only blinks the green light and will not display the numbers, allowing you to save more power. Gas and carbon monoxide level display When a hazardous gas is detected at the default value, the display quickly shows to keep you informed. Sound and light alarm and display gas concentration when carbon monoxide concentration ≥150ppm, if long press SELF-TEST button for 3 seconds, the sound can be turned off. 【Hembisen Plug in Combination Gas & Carbon Monoxide Detectors 】 This is an upgraded 2-in-1 gas and carbon monoxide detector with plug-and-play, digital display and 85 dB alarm. 【2-in-1 Gas & CO Sensors】Adopt catalytic combustion sensor and electrochemical sensor for sharper sense of smell and accurate. 【Power Saving Mode Design】When there is no dangerous gas around, the combination gas and carbon monoxide detector will automatically turn on the power saving mode and only show green light. 【Digital Display & 85dB Alarm】When combustible gas or carbon monoxide gas concentration is detected to reach the default value, the combination gas and carbon monoxide detector will display LEL or PPM, and at the same time, it will emit 85dB alarm sound. 【2-in-1 Detection Function】Can detect carbon monoxide gas and combustible gas; combustible gases include natural gas,LNG, LPG, propane, methane and etc