The Honeywell Home R200C-1 is a state-of-the-art carbon monoxide alarm designed to provide long-lasting, reliable protection for your home. Powered by a sealed 10-year lithium battery, this stand-alone alarm ensures continuous monitoring without the hassle of frequent battery replacements. The low-power chip maximizes battery life in standby mode, guaranteeing that the alarm will last its full lifespan. 10-Year Sealed Lithium Battery: Provides continuous power for a decade, eliminating the need for battery changes. 10-Year Sensor Life: Ensures reliable detection and peace of mind with a full lifespan warranty. Super Slim Design: Discreet and aesthetically pleasing, blends seamlessly into any home decor. Easy Installation: Simple to mount on