Universal Security Instruments 1204 Wire-In Smoke Alarm with Battery Backup
Universal Security Instruments 1204 Wire-In Smoke Alarm with Battery Backup (2 Pack)
Universal Security Instruments 1204 Wire-In Smoke Alarm with Battery Backup (4 Pack)
USI Electric MICN109 Hardwired 3-in-1 Smoke, Carbon Monoxide and Natural Gas Alarm
USI Electric MCN108 Hardwired 2-in-1 Carbon Monoxide and Natural Gas Smart Alarm with Battery Backup
USI Electric MDSCN111 4-in-1 Universal Smoke Sensing Technology Hardwired Smart Alarm
Universal Security Instruments USI-1209 120-Volt AC/DC Wired-In Ionization Smoke and Fire Alarm
BRK Brands CO5120BN Hardwire Carbon Monoxide Alarm with Battery Backup
Kidde KN-COB-IC Hardwire Carbon Monoxide Alarm with Battery Backup, Interconnectable