First Alert CO615 Plug-In CO Alarm with Battery Backup and Digital Display Review (4.3/5) | WC Safety
Verdict: 4.3/5. The First Alert CO615 plug-in CO alarm features a 6-foot power cord for flexible placement, 2 AA battery backup, and a backlit digital PPM display. Best plug-in CO alarm in the First Alert lineup for standalone use. UL 2034 listed.
Read now