First Alert brand 9V (battery incl.)smoke alarm/10 yr limited warranty. Photoelectric patented smoke entry system, mute/silence button, end of life signal, power LED (light emitting diode) & alarm indicator. Slim design; half the size of standard alarm. Wall/ceiling mount. UL listed.
Ionization sensor smoke detector. Features wide openings for smoke entry. Uses a 9V (volt) battery designed to last up to 1 year. Repeated beeping warns when battery needs replacing. Loud 85 decibel alarm horn and test button. Compact design measures 4-3/4 inches x 6 inches. 3-year limited warranty. UL (Underwriter's Laboratories) listed. 9V battery included.
