Searching for a device which indicates that a window (i. e. Roof window) is open. Not an alarm, it's sort of a switch which frequently (delay settable) sends an acustical when a window (or door) stands open so that the person in the house does not forget to close the window (or door) when leaving the house. Alte Show More...
Searching for a device which indicates that a window (i. e. Roof window) is open. Not an alarm, it's sort of a switch which frequently (delay settable) sends an acustical when a window (or door) stands open so that the person in the house does not forget to close the window (or door) when leaving the house. Alternatively a switch which sends (gnal to a panel (which s placed at the entrance door of the house) where flashing lights (LED) warns that a window stands open. Should be low cost and simple to install, battery operated. Expect big demand.
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