First Alert SA303CN3 Battery Powered Smoke Alarm

First Alert Smoke Alarm With Hush - Battery powered smoke alarm with mute feature silences nuisance alarms from cooking smoke or shower steam. 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. - Type: Battery Operated, Voltage: 9V, Battery Life: Varies According To Application, Sensor Type: Ionization, Dimensions: 5.4 In. W. 1.9 In. H. x 5.4 In. L., Battery Back-up: Battery Only, Alarm Type: Smoke, Decibel Level: 85dB, Battery Type: 9V Battery, Batteries Included: Yes, Color: White, UL Listed: Yes, Warranty: 10-Year Limited, Pkg Qty: 1, Package Type: Clamshell This item is banned in the following states: CA,MA,MD,NY,OR,VT