First Alert Slim Battery-Powered Photoelectric Smoke and Carbon Monoxide Detector 1 Each

Easily install the First Alert SMCO200 Battery-Operated Combination Smoke and Carbon Monoxide Alarm with Slim Profile Design. The alarm is half the depth of a standard alarm and provides reliable 2-in-1 smoke and carbon monoxide protection. Meets new industry standards with First Alert's Precision Detection advanced sensing technology to reduce cooking nuisance alarms and provides early warning in the event of a home fire emergency.