BRK

First Alert Battery-Operated Carbon Monoxide Detector

Model #1039721

First Alert

First Alert 2-Pack Battery-Operated Carbon Monoxide Detector

Model # 1043610

BRK

First Alert Plug-in Carbon Monoxide Detector

Model # 1039736

1.2 lb

First Alert

First Alert 2-Pack Plug-in Carbon Monoxide Detector

Model # 1042411

1.0 lb

Universal Security Instruments

Plug-In 2-in-1 Carbon Monoxide and Natural Gas Smart Alarm with Battery Backup

Model # MCN400B

1.0 lb