Kidde 2-Story Home Fire Safety Kit, 3-Pack Hardwired Smoke/CO Detector with Fire Escape Ladder & 2-Pack Fire Extinguisher

Kidde 10-Year Worry Free 120-Volt Hardwired-Interconnected Combination Smoke and Carbon Monoxide Alarm. The alarm is suitable as a single station and/or multiple station (24 devices) alarm. This alarm contains a 10-year sealed-in lithium battery backup. No batteries to replace in this hardwired alarm and a limited 10-year warranty.