A month ago, 'we bought the Gigaset base to obtain a basic protection. After initial hesitation, we finally decided to extend the system. I have to say it was worth it. The Window element indicates whether the window is tilted or opened. So you can in the evening again check on the fast, whether really the important windows are closed. I find the sensor even better than the door sensor which triggers only under strong shaking. So I'll probably still one or the other window sensor bring to expand the coverage.
