First Alert Battery Operated 9V Ionization Smoke Alarm with Hush

Battery powered smoke alarm with mute feature silences nuisance alarms from cooking smoke or shower steam. Can be silenced for up to 10 minutes when cooking. Single button also tests alarm functions. Easy access front loading battery door. No need to remove alarm from ceiling to change battery. Battery life varies according to use and application. Ideal for hallways, bedrooms and living areas. 10-year limited warranty. Meets UL (Underwriter's Laboratories) standards.