This Kidde HomeProtect Smoke Alarm uses optical sensor technology and is ideal for use in living areas. Powered by a sealed-in 10-year lithium battery that lasts the full life of the alarm and never needs replacing. When activated, the alarm has a loud 85 decibel alert. It is simple and easy to install thanks to its single screw mounting bracket.
With a hush button feature that lets you silence nuisance alarms and a test button with LED for simple verification of continual battery and alarm operation. Also has a handy end of life warning feature that chirps when the alarm has reached end of life and needs replacing.
10 Year Manufacturers Guarantee.