The Kidde K10LLDCO carbon monoxide alarm is equipped with a digital LCD display and a 10-year sealed-in lithium battery. It provides continuous monitoring and detection of carbon monoxide levels in your home. The digital display shows real-time CO levels, enhancing safety and awareness. The 10-year battery ensures long-term operation without the need for battery replacements. This alarm is designed for easy installation and reliable performance in residential settings. Features and Benefits Water-based Kidde CO electrochemical sensor 3 LEDs - Alarm, Operate and Fault End-of-life alarm alerts user to replace alarm after 10 years of protection Test/Reset button to allow regular testing of alarm function Typical Applications Ideal for homes and apartments Standards EN50291-1:2018