BRK Electronics First Alert ZCOMBO-G Two 1.5V AA Battery Operated Photoelectric Smoke and Carbon Monoxide Combo Alarm (Upgraded to SMCO410)

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

BRK Electronics First Alert SCO2B 9V Alkaline Battery Operated Ionization Smoke Alarm and Carbon Monoxide Combo Alarm (Upgraded to SMICO100)

BRK First Alert SM210 (1046741) 10-Year Battery Smoke Alarm with Slim Profile Design

BRK Electronics First Alert SCO500 OneLink Wireless Battery Smoke/CO Combo Alarm with Voice (Upgraded to SMCO500V)

BRK First Alert SM200 (1046728) Battery powered, Low Profile, Smoke Alarm with Replaceable Battery and Silence Feature

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

BRK Electronics First Alert SA350B 10 Year sealed Lithium Battery Powercell Operated Dual Ionization Smoke Alarm (Upgraded to SMI110)

BRK Electronics First Alert SA520B 120V AC/DC Wireless OneLink Smoke Alarm Bridge Unit

BRK First Alert SMCO100V-AC (1046781) Interconnect Hardwire Photoelectric Smoke & CO Alarm with Battery Backup & Voice

BRK Electronics First Alert CO400B 9V DC Battery Operated Electrochemical Carbon Monoxide (CO) Alarm

BRK Electronics First Alert SLED177 120V LED Strobe Light AC Hardwired Hearing Impaired

BRK Electronics First Alert CO615B 120V AC/DC Plug-in with 2 AA Batteries Backup Electrochemical Carbon Monoxide (CO) Alarm with Digital Display

BRK Electronics First Alert SA511B OneLink Wireless Battery Smoke Alarm with Voice (Upgraded to SM500V)

BRK Electronics First Alert SA501 OneLink Wireless Battery Smoke Alarm with Voice (Upgraded to SM500V)

BRK Electronics First Alert SL177 120V AC Hardwired Hearing Impaired Smart Strobe (Upgraded to BRK-SLED177)

BRK Electronics First Alert SCO500B OneLink Wireless Battery Smoke/CO Combo Alarm with Voice (Upgraded to SMCO500V)

BRK Electronics First Alert SC6120B 120V AC/DC Hardwired with 9V Battery Backup Ionization Smoke Alarm and Carbon Monoxide Combo Alarm (Upgraded to SMICO100-AC)

BRK Electronics First Alert SA511 OneLink Wireless Battery Smoke Alarm with Voice (Upgraded to SM500V)

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

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

BRK Electronics First Alert SA500 OneLink Wireless Battery Smoke Alarm with Voice (Upgraded to SM500V)

BRK First Alert SM110V-AC (1048322) AC/DC Hardwired with Lithium Battery Back Up and Locked Battery Drawer Photoelectric Smoke Alarm

BRK Electronics First Alert CO511B OneLink Wireless Battery CO Alarm with Voice