Leeb Hardness Tester with D type Impact Device,3 Prong Connection Cable and Lemo Connector. I.Introduction: 1. Compact metal case, suitable for use under poor working conditions. Test at any angle, even upside and down. 2. Wide measuring range. It can measure the hardness of all metallic materials. Direct display of hardness scales HRB, HRC, HV, HB, HS, HL 3. Large screen(128*64 dot matrix LCD), ...