USI Electric Plug-In, 2-In-1 Carbon Monoxide & Natural Gas Detector, Battery Backup, Microprocessor Intelligence (Case of 6)

The USI Electric MCN400B 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. The compact plug-in design covers only (1) outlet for a fast and easy installation with no wiring required. Includes a single silence/test button to quiet a non-hazardous alarm and an end-of-service life warning that sounds when it's time to replace the battery (approximately 7 years from activation). The 9-volt alkaline battery (included) continues protection in the event of a power outage.|Protect your family against deadly threats in the home|Combines Carbon Monoxide And Natural Gas Sensing Technology|9 Volt Alkaline Backup Battery Provides Continuous Protection|Features Microprocessor Intelligence To Virtually Eliminate Nuisance Alarms|Three Led Colors Display The Status Of The Alarm, Power, Co And Gas In Your Home|Quick Activation Pull-Tab Designed To Quickly Activate The Battery|5 Year Limited Warranty|This Alarm Conforms To UL2034 Standards, California State Fire Marshal Approved And Federal Housing Authority (FHA) Approved To Exceed Industry Standards