Item Tag: First Alert SMICO105-AC

First Alert BRK SMICO105-AG Combination Smoke and Carbon Monoxide Detector – 6PK

First Alert BRK SMICO105-AG Hardware w/10-YR Battery Back Combination Smoke and Carbon Monoxide Detector – 6PK. Interconnects with most First Alert and BRK alarms so when one sounds, all compatible alarms sound to provide an early warning.