The Netatmo Tags are accessories for the Welcome camera, adding an extra layer of security to your doors and windows. Thanks to the Tags; integrated open/closed state sensor, you can choose to be alerted if you have accidentally left a window or the garage door open. Check directly on your smartphone if all windows are closed. Installation is easy: simply stick the one-piece Tag to any door or window. Netatmo Tags only work with the Netatmo Welcome camera, sold separately. Get notified when doors and windows are opened. Netatmo tags can be placed on your windows, doors or even mailbox. When they are opened, the tags send a notification on your smartphone. Get alerted before an intrusion happens the tags detect vibrations and are able to send you a notification even before an intrusion occurs. Compatible with iOS and Android operating systems. Operates over wi-fi. Requires wireless router for use. Detects occupancy. Components include 3 door tags, 6 adhesives, 1 tag opener. Batteries required 1 x AAA (included). Size H76, W15.8, D30.4cm. 2 year.