First Alert 10 Year Photoelectric Smoke and Fire Alarm 2-pack provides reliable smoke detection for home safety. This battery-powered smoke detector uses photoelectric sensor technology optimized to detect larger smoke particles produced by slow-burning, smoldering fires such as those caused by unextinguished cigarettes. The sealed lithium battery provides continuous power for 10 years without battery replacement, eliminating the hassle of frequent battery changes.

Features include a patented smoke entry system for improved detection accuracy, an 85-decibel alarm that is easily heard throughout the home, and false alarm reduction technology that distinguishes between real threats and everyday cooking or shower vapor. The slim, contemporary design mounts unobtrusively on walls or ceilings using a versatile twist-lock mounting bracket, requiring no rewiring for installation. An end-of-life warning alerts you when the detector should be replaced after 10 years.

This alarm complies with national standards set by NFPA, HUD, and FHA, ensuring reliable fire safety protection for your home and family.