KIDDE 900-0133 Nighthawk™ CO and Smoke Combination Alarm Talking 120 VAC

Hardwire Smoke Carbon, Monoxide Talking Alarm. Ionization Technology: Better at detecting fast flaming fires. 120V AC Direct-Wire: Interconnects with up to 24 units, of, which 18 can be initiating. Test / Reset Button: Tests circuitry and resets alarm. Hush® Button: Quickly silences nuisance alarms. Talking Alarm: Voice messages with sounding alarm identify, different dangers. 2-in-1 unit – Advanced sensors for detecting both CO and smoke.