Enhance your household's fire safety and enjoy greater peace of mind with the First Alert 9120B Hardwired Smoke Alarm with 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 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.

• Brand Name: First Alert
• Power Type: Hard-Wired w/Battery Back-up
• Sensor Type: Ionization
• Product Type: Smoke/Fire Detector
• Packaging Type: Clamshell
• Test and or Reset Button: Yes
• Number in Package: 1 pk
• UL Listed: Yes
• ETL Listed: Yes
• Volts: 120 V
• Batteries Included: Yes