Wire-Free Interconnected AC Hardwired Smoke Alarm P4010ACS-W | Kidde
Kidde 10 Year Worry-Free Hardwired Smoke Detector with Voice Alarm and Ambient Light Ring 21029894 - The Home Depot
SITERLINK Smoke Detector Hardwired, Smoke Alarm Interconnected with Battery Backup, Photoelectric Fire Alarms Smoke Detectors with LED Lights, UL217 Listed Fire Alarm for House, GS517 - Amazon.com
SITERWELL Hardwired Interconnected Smoke Detector, Photoelectric Smoke Alarm with 9V Backup Battery, Fire Alarm with Test/Silence Button, GS517, 2 Packs - Amazon.com
First Alert Hard Wired Smoke Alarm — 6-Pk., AC-Powered, Model# 9120B6PC | Northern Tool