Combination Gas & Carbon Monoxide Detectors - Plug in Carbon Monoxide Alarm & Natural Gas Detector for Home, 2-in-1 Co Detector & Combustible Gas Detector with Digital Display, Easy to Install

Features

• 【Hembisen Plug in Gas & Carbon Monoxide Detector ‎KH-522】This is a newly optimized 2-in-1 unplugged detector with a backup power feature so you can keep tabs on your home.
• 【Highly Reliable Electrochemical Sensor】Two-in-one gas detection with fast response time.
• 【2-in-1 Digital Display & Alarm]】When the detected gas reaches the default value, it will immediately display PPM or LEL separately and emit 85dB sound.
• 【Backup Power Function】Can be equipped with 9V alkaline batteries, which can continue to supply power in case of power outage, allowing the product to continue to work normally.
• 【Plug and Play Design】Plug in the power supply, warm up for 60 seconds, and then the green light shows that it is working normally.
• 【2-in-1 Detection Function】Can detect carbon monoxide gas and combustible gas; combustible gases include LNG, LPG, propane, methane and etc