First Alert SMCO100V-AC, Interconnect Hardwire Combination Smoke & Carbon Monoxide Alarm With Battery Backup And Voice & Location Alerts, 6-Pack

First Alert 9120B 120V AC/DC Hardwired With 9V Battery Backup Ionization Smoke Alarm (Upgraded To SMI100-AC)

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

BRK Electronics First Alert 4120B 120V AC/DC Hardwired With 9V Battery Backup Ionization Smoke Alarm (Upgraded To SMI100-AC)

First Alert Talking Smoke Carbon Monoxide Alarm Built-In 10-Year

Universal Security Instruments Smoke And Fire Alarm: Smoke, Hardwired, Battery Backup, Hardwired Model: AMI1061SB

Sunco First Alert BRK Hardwired Ionization Smoke Alarm

BRK Electronics First Alert 4919 120V AC Hardwired Ionization Smoke Alarm (Replaced By BRK SMI100-AC)

Brk Smi105-Ac First Alert Ac Powered Hardwire Smoke Alarm 1046850

First Alert 2Pk 10-Year Battery Photoelectric Smoke Alarm With Slim Profile

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

First Alert Hard-Wired W/Battery Back-Up Ionization Smoke And Carbon Monoxide Detector

First Alert SMI100 9V Alkaline Battery Operated Sensor Smoke Alarm 1 Pack - 5050050

First Alert Alarm Smoke AC/DC With ADP SMI100-AC: Hardwired Smoke Detector, Fire Alarm, Lithium Battery, 10-Year Warranty

First Alert Hardwired 120V Electrochemical/Ionization Carbon Monoxide And Smoke Alarm

First Alert Battery Operated 9V Ionization Smoke Alarm With Hush

First Alert Brk Hardwired Smoke Alarm W/ Battery Backup 9120B

First Alert Hardwired 120V Ionization Smoke Alarm

First Alert BRK Sc9120b 85-Decibel Ionization Hardwired Smoke And Electrochemical Carbon Monoxide Detector With Battery Backup

First Alert Smoke Alarm Detector 10 Year Battery 0827. 2