3 Packs Combination Gas & Carbon Monoxide Detectors, Plug in Natural Gas Detector & Carbon Monoxide Alarm, CO Detector Alarm & Propane, Methane, Explosive Gas Detector for Home,RV,Easy to Install

【Hembisen Plug in Combination Gas & Carbon Monoxide Detectors 】 That 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’s no dangerous gas around, the combo gas and carbon monoxide detector will routinely 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 succeed in the default value, the combo gas and carbon monoxide detector will display LEL or PPM, and on the same time, it is going to 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 and so forth
【Applications】Combination gas & carbon monoxide detectors is suitable for home, restaurant, apartment, place of business, hotel, petroleum plant, gas station, camper van, and so forth.