
Know where a fire is immediately with the First Alert Onelink Wi-Fi Smoke and Carbon Monoxide Alarm. The talking alarm tells you whether smoke or carbon monoxide is detected, and the photoelectric smoke sensor reduces nuisance alarms, so normal smoke or steam from cooking doesn't set it off. Hardwire connection with 10-year sealed battery backup means no battery replacements for the life of the alarm and no low-battery chirps in the middle of the night.