This First Alert carbon monoxide alarm features a 10-year built-in lithium battery for continuous monitoring during the life of the alarm， and uses an electrochemical carbon monoxide sensor and an 85-decibel alarm to alert you to CO threats. The advanced electrochemical CO sensor detects carbon monoxide leaks from multiple sources， such as faulty fuel-burning appliances， blocked chimneys， and generators running inside or too close to homes. Because CO evenly distributes itself， it's important to have a CO detector on every level and in every bedroom of your home. This easy-to-use alarm features a digital display that shows ambient temperature as well as peak CO levels. The detector's stylish design looks great on top of a dresser or table.

• Brand Name: First Alert
• Power Type: Battery-Powered
• Sensor Type: Electrochemical
• Product Type: Carbon Monoxide Detector
• Number in Package: 1 pk
• Test and or Reset Button: Yes
• Packaging Type: Clamshell
• UL Listed: Yes
• Batteries Included: Yes
• Warranty: 10 year Limited Parts and Labor
• Replaces Ace # 5635891 and Ace # 5635917