The Universal Security Instruments Electric MCND401 Plug-In Carbon Monoxide and Natural Gas Smart Alarm is a 2-in-1 device that provides double the protection with a single installation. This dual-sensing alarm protects against two deadly household threats: carbon monoxide and natural gas (or methane). Perfect for new or replacement installations, the 120-volt AC alarm is suitable for houses, apartments and mobile homes.
USI Carbon Monoxide & Natural Gas Plug in Sensor
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Universal Carbon Monoxide Detector
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Smoke Detectors You'll Love
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Bundle of 4 USI Smoke Alarm MDS300-401 & Plug-in CO and Gas Alarm MCND401
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Kidde Code One Carbon Monoxide Detector, Battery Powered, CO Detector 21029508 - The Home Depot
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Universal Security Instruments MCND401 M Series Plug-In Carbon Monoxide and Natural Gas Alarm with 9-Volt Battery Backup
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USI Carbon Monoxide & Natural Gas Plug in Sensor MCND401B
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Kidde Battery Operated Digital Display Carbon Monoxide Alarm
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Universal Security Plug-In Carbon Monoxide Natural Gas Alarm MCND401 Smoke Alarm 42741204019
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USI MDS300-401 Universal Smoke Sensing (IoPhic) Smoke and Fire Alarm with CO and Natural Gas Alarm