For installation inside of IT racks and cabinets, enclosures, doors, and windows. It is used to detect the opening of doors or windows, garage doors, rack doors, ie . in places , where it is necessary surveillance by means of opening the magnetic contact. It is but also compatible with many alarms other 3rd party brands. Detection is based on the separation of two magnetically interconnected parts, of one which is located on the frame door / window and the other on the door / window. This simple sensor of the basic set alarm requires no power supply, it is powered directly from the main unit alarm, simply connect it to dry contact inputs of the Vutlan monitoring system.