Kidde Smoke Alarm with Escape Light, Photoelectric, 21010167

Worry Free 10 year sealed Hallway photoelectric smoke alarm with Safety Light features a 10 year sealed in lithium battery that eliminates the need for battery replacement and ends worry over unauthorized battery removal. Self activated when mounted on bracket. Super-bright LED's provide lighted escape path when alarm activated. Alarm memory feature alerts user if the alarm has sounded since the last time the test/reset button was depressed. Smart Hush temporarily silences nuisance alarms for approx. 10 minutes and will not allow Hush Mode unless unit is in alarm mode.