[ Electronic apparatus for the non-medical, nondestructive testing of industrial materials, namely, testing for material defects and material irregularities; ] Electronic apparatus for non-medical, non-destructive testing of materials by means of image processing, in particular using thermography; Apparatus for testing semi-finished goods and wires for material defects, surface defects and material irregularities, namely, electronic apparatus for inspecting electrically conductive materials such as metal industrial goods and wires; [ Electronic apparatus for measuring electric, magnetic and other physical properties of electrically conductive materials; Electronic apparatus for measuring layer thickness, film thickness, coating thickness and foil thickness of electrically conductive materials; Probes, sensors, test heads and exploring coils in the nature of component parts for the aforesaid apparatus; ] Electronic data processing equipment, namely, data processors and computer hardware for controlling electronic apparatus, and for evaluating information obtained therefrom; [ Replacement parts of the aforesaid goods; ] Computer programs recorded on data carriers for controlling the foregoing electronic measuring and testing apparatus, for evaluating defect information obtained therefrom, [ and for controlling associated apparatus, namely, marking and sorting devices ]