Viedais Sensors Netatmo Smart Door and Window Sensors 3pcs White (DTG-EC)

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.

See whether doors and windows are open or shut - directly in the app
You can adjust the settings in your app to keep an eye on your home at all times by configuring Smart Door and Window Sensors to send you a smartphone notification if a door or window is kept open too long.
Just left home but think you might have left something open? You can check whether doors and windows equipped with a sensor are open or shut directly in the app.

Easy to install
Smart and straightforward - that’s the thinking behind Netatmo products. Our Smart Door and Window Sensors are no exception! Simply stick the one-piece waterproof sensors to any type of door or window.
The only other thing you need to get them started is a Netatmo Smart Indoor Camera.

Enjoy the benefits of the complete Smart Alarm System with Camera.
Together, the Netatmo Smart Door and Window Sensors, the Smart Indoor Camera, and the Smart Indoor Siren form a complete Alarm System that protects your home and responds to break-ins. You can even select a specific Sensor to raise the alarm if someone tries to break into your home.
The Siren and the Sensors only work with the Netatmo Smart Indoor Camera. Maximum 1 Siren and 12 Sensors per Camera. The Siren needs to be installed indoors, in the same room as the Camera.