Kidde i12020 Hardwired Smoke Alarm with Hush Button, Interconnectable

120V Electric Smoke Alarm with Dual Ionization Chamber Features: Ceiling or wall mounting Dual ionization chamber AC power-on indicator Solid state circuitry Single or multiple stations Hush control feature Specifications: 120 volt AC Compact 5-1/2" diameter As the world's largest manufacturer of fire safety products, Kidde's mission is to provide solutions that protect people and property from the effects of fire and its related hazards. For 90 years, industry leaders, the military, airlines and firefighters have relied on Kidde to deliver superior fire detection and suppression. Consumers will find that same advanced fire safety technology in Kidde's residential and commercial smoke alarms, carbon monoxide alarms, fire extinguishers and other life safety products.