Kidde Firex Battery-Operated Smoke Alarm

A simple, wire-free smoke alarm for homes, apartments and businesses. It runs on a 9V battery and mounts on a twist-off plate. It needs no wiring, and battery changes are quick and safe. The ionization sensor and 85 dB horn give an early warning. A test button checks the circuitry and horn, and the same button silences nuisance alarms with Smart Hush. A flashing red light shows it's powered, a low-battery chirp tells you when to replace the battery, and a locking pin helps deter battery and alarm theft.