First Alert 10-Year Battery Photoelectric Smoke Alarm with Safety Path Light combines advanced fire detection technology with innovative safety features to keep your home secure. Featuring Precision Detection advanced sensing technology, it early warnings while minimizing false alarms. The built-in safety path light helps illuminate your way during emergencies, providing a clear and safe exit route. Designed with a slim profile, this UL-listed smoke alarm is both sleek and reliable. Its 10-year sealed lithium battery means you won’t need to worry about s, ensuring hassle- protection for a full decade. Model Number: 1046747