This Kidde HomeProtect Smoke Alarm uses optical sensor technology and is ideal for use in bedrooms. 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 and an additional voice alarm that clearly announces the detection of smoke.
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.