Feit Electric Battery-Powered Smart Wi-Fi Door Window Sensor

Protect your home against intruders with the Feit Electric MOT/DOOR/WIFI/BAT smart door / window sensor. Operating on two replaceable AAA batteries, this compact sensor mounts on door and window frames and uses the Feit Electric app to notify your smart device whenever it senses an opening / closing. Get peace of mind with 24/7 protection, even when you're far from home