BRK Electronics First Alert 9120LB 120V AC/DC Hardwired with 9V Lithium Battery Backup Ionization Smoke Alarm (Upgraded to SMI105-AC)

BRK Electronics First Alert CO5120B 120V AC/DC Hardwired with 9V Battery Backup Electrochemical Carbon Monoxide Alarm (Upgraded to CO5120BN)

BRK Electronics First Alert 7010LBL 120V AC/DC Hardwired with Lithium Battery Back Up and Locked Battery Drawer Photoelectric Smoke Alarm (Upgraded to SM110V-AC)

BRK Electronics First Alert Low Profile PR710B 10 Year Sealed Lithium Power Battery Operated Photoelectric Smoke Alarm

BRK Electronics First Alert SA86B 120V AC/DC Hardwired with 9V Battery Backup Ionization Smoke Alarm (Upgraded to SMI100-AC)

BRK Electronics First Alert SCO5B 2 AA Batteries Operated Photoelectric Smoke Alarm and Carbon Monoxide Combo Alarm (Upgraded to SMCO210)

First Alert BRK SA4919B 120V AC Hardwired Ionization Smoke Alarm (Upgraded to SMI100-AC)

BRK Electronics First Alert CO600B 120V AC Plug-in Electrochemical Carbon Monoxide (CO) Alarm

BRK Electronics First Alert SA520 120V AC/DC Wireless OneLink Smoke Alarm Bridge Unit (Upgraded to SA520B)

First Alert BRK SA4120B 120V AC/DC Hardwired with 9V Battery Backup Ionization Smoke Alarm (Upgraded to SMI100-AC)

BRK First Alert SM110LED-AC (1046726) Hardwired Smoke Alarm with LED Strobe & 10-Year Battery Backup

BRK Electronics First Alert CO605B 120V AC/DC Plug-in with 2 AA Batteries Backup Electrochemical Carbon Monoxide (CO) Alarm

BRK Electronics First Alert CO710 DC 10-Year Sealed Lithium Battery Powered Carbon Monoxide Alarm with Digital Display

BRK Electronics First Alert GCO1B 120V AC Plug-in Explosive Gas/CO Combo Alarm

BRK Electronics First Alert 9120B-48B 120V AC/DC Hardwired with 9V Battery Backup Ionization Smoke Alarm - Saving 48-Pack (Upgraded to SMI100-AC)

BRK Electronics First Alert CO250LB 9V DC Lithium Battery Operated Tamper Resistant Electrochemical Carbon Monoxide (CO) Alarm