First Alert Onelink Hardwired 120V Photoelectric Smart Carbon Monoxide and Smoke Alarm

Wi-Fi photoelectric smoke & carbon monoxide alarm. Wi-Fi connected to send notifications to Apple iOS devices in the event of a smoke or carbon monoxide emergency. Easily replaces most 120-volt AC hardwired alarms without rewiring. Includes a 10-year sealed battery to ensure uninterrupted protection with no need to change the battery over the life of the alarm. Requires 2.4 GHz Wi-Fi connection. Compatible with Apple HomeKit.