Secvest 2WAY Wireless Opening Detector. Reliably detects the opening of windows and doors. Connection of a wired glass break detector is possible. Tamper monitoring and low battery warning included. Mounting materials, six spacers, and battery included. Additional security through an optional glass break detector. For even better protection, the combination of the opening detector with an optionally available passive glass break detector is possible. This is connected via cable to the transmission module and reports unauthorized opening of the window even if the glass is broken. Abus - synonymous with security. In 1924, August Bremicker and his sons achieved a milestone by launching a groundbreaking padlock: the "Iron Rock." At that time, the family began developing and producing locks in the forge located in the basement of their home. They faced strong competition, as there were many such forges in Volmarstein and the surrounding area. However, August Bremicker and his sons were so successful that the company quickly grew, leading to the purchase of the production facility on Hegestrasse in Volmarstein in 1929, which is still in operation today. Today, Abus is a globally operating company, led by the family in its fourth generation, and its products are valued worldwide for their quality. Safe, reliable, stable: that is what the name Abus stands for.