Abus Smartvest wireless opening detector - buy at Galaxus
User manual Abus Smartvest (English - 63 pages)
ABUS Smartvest Wireless Alarm System and App – Basic Set (FUAA35001A)
ABUS Smartvest PPIC42520 Wireless Alarm System Basic Set Burglar Detection System + WLAN Surveillance Camera - Pan Tilt Outdoor Camera 1 Piece (Pack of 1) : Amazon.de: DIY & Tools