First Alert CO600 Plug-In Carbon Monoxide Detector

First Alert CO605 Plug-In Carbon Monoxide Detector with Battery Backup , White

First Alert BRK SC7010B Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup , White

First Alert CO710 Carbon Monoxide Detector with 10-Year Battery and Digital Temperature Display , White

First Alert SCO7CN Combination Smoke and Carbon Monoxide Detector with Voice and Location, Battery Operated , White