First Alert Hard-Wired w/Battery Back-up Ionization Smoke/Fire Detector

Enhance your household's fire safety and enjoy greater peace of mind with the First Alert BRK Hardwired Smoke Alarm with 10-year Battery Backup. Equipped with an ionization sensor, this 120-volt hardwired smoke alarm reliably detects smoke from fast-flaming fires and alerts you with an 85-decibel alarm. Included adapter plugs eliminate the need for re-wiring during installation, while a backup 10-year battery helps keep the unit running in case of a power outage. Designed to maximize accessibility and ease of use, this hardwired smoke detector features a single button that allows you to test and silence the alarm. And thanks to the universal mounting bracket, this smoke alarm is easy to install.