First Alert SA304 Smoke Detector with Escape Light

Bright Escape light. Illuminates your path to safety Silence/Test Button. Silence or test alarm functions. Side Battery drawer. Slides open for easy battery replacement. Missing battery guard. Ensures a battery is placed inside the smoke alarm. Blinking power indication. Confirms unit is receiving power. Tamper Resistant. Optional pin to lock battery and unit in place. Loud 85-decibel alarm. Low battery warning. 9V battery included