Feit Electric Battery-Powered Smart Wi-Fi Door and Window Sensor, Easy setup - No Hub Required in White (12-Pack)

Protect your home against intruders with the Feit Electric Mot/Door/WIFI/BAT smart door/window sensor. Operating on 2 replaceable AAA batteries, this compact sensor mounts on door and window frames and uses the Feit Electric app to notify your smart device whenever an opening or sensor tampering is detected. Get peace of mind with 24/7 protection, even when you're far from home.