First Alert, 10 Year, 2 In 1, Photoelectric Smoke Detector, With Carbon Monoxide Alarm, Be alerted to the type of danger and its location in your home with First Alert's SMCO210V 10-Year Sealed Battery Combination Smoke & Carbon Monoxide Alarm with Voice & Location Alerts. This 2-in-1 alarm provides convenient protection against both threats and meets new industry standards.
