The FSZ Basis hold-open system control unit is a power supply unit, manual button, reset button, alarm memory and operating status display in one device, it is suitable for use on doors and gates in various fields of application from industrial to administrative buildings, the FSZ complies with DIN EN 14637 and the new DIBt test principles for hold-open systems from 2012, integrated reset button, operating, alarm and fault display, as well as manual release button with changeable labeling, switchable alarm storage and line monitoring, DIBt approved, tested and approved according to DIN EN 14637, VdS tested and approved
