Netatmo Smart Door And Window Sensors, 3 pcs

Take action even before an intruder breaks into your home

The Smart Door and Window Sensors alert you to a problem even before a break-in occurs. Installed on the doors and windows of your choice, they can tell if someone is trying to force entry.

They also detect when a door or window is opened suddenly and send an immediate notification to your smartphone. This saves you valuable time in the event of a break-in.