Kidde 21028116 Hardwire Smoke and Carbon Monoxide Detector with 10-Year Battery Backup and Intelligent Wire-Free Voice Interconnect

This Kidde 120-Volt Hardwired Combination Smoke/CO Voice Alarm with Intelligent Wire-Free Interconnect and 10-Year Battery features voice alert, wireless interconnectivity, and a sealed-in 10-Year Backup Battery. This alarm requires hardwire installation and includes a 10-year Battery Backup to provide protection even during power outages. The voice alarm announces the type of hazard detected and indicates when the Smart Hush feature has been activated. This alarm interconnects with other Kidde hardwire interconnect alarms and also features wire-free interconnectivity with other Kidde 10-Ye