Q: Does the motion detector / night vision work through a Window pane?
A: On the motion detection side, only the software-based motion detection would work. The built-in PIR (thermal sensor) would not work through the disc unfortunately. The night vision would rather ensure that one has reflections in the picture. You could align the camera slightly obliquely to the disk, but you would still see the reflections in the disk. Therefore, we would not necessarily recommend the use behind a disc "not".