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First Alert 2pk 10-Year Battery Photoelectric Smoke Alarm with Slim Profile

First Alert CO710 Carbon Monoxide Detector with Digital Temperature Display: 10-Year Warranty, Lithium Battery, White

First Alert Alarm Combo DC10 with VCE SMCO210V Clam Tray: Smoke & Carbon Monoxide Detector, Fire Alarm, 10-Year Warranty

First Alert® SMI110 Sealed 10-Year-Battery Smoke Alarm

First Alert 2pk CO400CN2 Battery Powered Carbon Monoxide Detector: Best CO Detector, 9-Volt Alkaline Battery Included

First Alert Alarm Smoke DC10 SM210 Clam Tray: 10-Year Lithium Ion Battery, Fire Alarm, No Hardwired Installation Required

First Alert® Standard Battery-Operated Smoke Alarm and CO Alarm Value 2 Pack with Models SMI100 and CO400

First Alert CO400 Battery Powered Carbon Monoxide Detector: 9-Volt CO Alarm, Silences Unwanted Alarms, 7-Year Warranty

First Alert 9120B-AC BRK, Hardwire Interconnect Smoke Alarm with Battery Backup

First Alert BRK SC-9120B Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup

First Alert 9120B Smoke Detector, Hardwired Alarm with Battery Backup, 3-Pack

First Alert SMI100-AC, Hardwire Interconnect Smoke Alarm with Battery Backup

First Alert SMICO100-AC Interconnect Hardwire Combination Smoke & Carbon Monoxide Alarm with Battery Backup

First Alert SM100V-AC, Interconnect Hardwire Smoke Alarm with Battery Backup & Voice Alerts, 1-Pack

First Alert SMI100-AC, Hardwire Interconnect Smoke Alarm with Battery Backup, 3-Pack

First Alert Smoke Alarm, Interconnect Hardwire Detector with Battery Backup, SMI100-AC, 3-Pack

First Alert SMI100-AC, Hardwire Interconnect Smoke Alarm with Battery Backup

BRK Hard-Wired w/Battery Back-up Electrochemical Carbon Monoxide Detector

BRK Battery-Powered Electrochemical Carbon Monoxide Detector

BRK Voice and Locatio Hard-Wired w/Battery Back-up Photoelectric Smoke Detector 1 pk