The window contact is installed quickly and easily! It consists of two constituents, one of which on the door (or window, as appropriate) is fixed and the other to the frame. Installation is possible either by screws or by bonding, for the latter a two-sided adhesive tape is attached. In the long run I'll drill him in the short term but I have decided to use the adhesive solution - remains faithful properly.
Very universally applicable, in principle, can thus be monitored at any opening / closing mechanism. This is meant for windows and exterior doors (z. B. balcony doors), but are also conceivable garage doors, interior doors and anything else that will open.
I have it used in combination with wall thermostat and heating thermostat to automatically shut down the heating by prolonged window opening. But it can also be used to o Report to burglaries. Ä.