Photoelectric Smoke Alarm & Escape Light, 10-year Battery

First Alert, 10 Year, Sealed Battery Operated, Photoelectric Smoke Alarm, With Escape Light, Illuminate your path to safety with the First Alert SM210L 10-Year Sealed Battery Smoke Alarm with Safety Path Light. The SM210L smoke alarm also features First Alert's Precision Detection advanced sensing technology and meets new industry standards. The 10-year battery means no battery replacements for a decade.