2 Kidde 10 Year Worry-Free Sealed Battery Combination Smoke and Carbon Monoxide best

Product Name: 2 Kidde 10 Year Worry-Free Sealed Battery Combination Smoke and Carbon Monoxide best
Two Kidde 10 Year Worry-Free Sealed Battery Combination Smoke and Carbon Monoxide Detector with best Wire-Free Interconnect New in Box Retail $74.97 each at Home Depot Sealed-in Lithium Battery: No battery replacement required over the 10 year life of the alarm. Eliminates worry about battery removal or unauthorized deactivation of alarm. Voice Notifications: Unit verbally announces, "Fire!" and other alerts such as, "Replace Alarm," which helps the user better understand current status of the unit. Bug Screen: Protects alarm from insect ingress Supervised Wire-Free Interconnect: Proprietary radio signal joins multiple alarms together, so when one alarm sounds they all sound. User is alerted if an alarm loses connection to the network. 10-Year Sealed Lithium Battery: Eliminates late night battery chirp 10-Year Limited Warranty End of Unit Life Warning: Alerts user the alarm is in need of replacement.