First Alert SM500V, Interconnect Battery-Operated Smoke Alarm With Voice Alerts, 1-Pack

First Alert CO600 Plug-In Carbon Monoxide Detector

First Alert SMCO100 Battery-Operated Combination Smoke & Carbon Monoxide Alarm, 1-Pack

First Alert SMCO210, 10-Year Sealed Battery Combination Smoke & Carbon Monoxide Alarm With Slim Profile Design, 1-Pack

First Alert CO615 Dual-Power Plug-In Carbon Monoxide Detector With Battery Backup And Digital Display, White

First Alert SCO7CN Combination Smoke And Carbon Monoxide Detector With Voice And Location, Battery Operated , White

First Alert BRK 7030BSL Hardwired Hearing Impaired Combination Alarm With Led Strobe Light, White

First Alert SMI110, 10-Year Sealed Battery Smoke Alarm, 1-Pack

First Alert Carbon Monoxide Detector Alarm|No Outlet Required With Digital Display And Peak Memory, Battery Operated, CO410 , White

First Alert SMI105-AC, Interconnect Hardwire Smoke Alarm With 10-Year Battery Backup, 3-Pack

FIRST ALERT Dual Sensor Smoke And Fire Alarm, SA3210 , White

First Alert Smoke Detector Hard-Wired W/Battery Back-Up Ionization 1046834

First Alert SC-9120B Hardwired Smoke And Carbon Monoxide Alarm With Battery Backup 2 Pack

FIRST ALERT BRK SC9120B-3 Hardwired Smoke And Carbon Monoxide (CO) Detector With Battery Backup, White, Pack Of 3

First Alert CO400 Carbon Monoxide Detector, Battery Operated, 6-Pack , White

First Alert SMICO110, 10-Year Battery Combination Smoke & Carbon Monoxide Alarm, 1-Pack