SMOKE AND CARBON MONOXIDE ALARM
First Alert Carbon Monoxide/Smoke Alarm
2-in-1 combination smoke and carbon monoxide alarm with photoelectric patented smoke entry system. Slim design is half the size of a standard alarm with nuisance free technology. Features power LED (light emitting diode) and alarm indicator, mute/silence button, and end of life signal. Wall or ceiling mount with easy slide-in mounting bracket. 2 AA batteries included. 7 year limited warranty.