Description:portable hardness tester 1.Pass ISO 9001 2.Size:230 X 90 X ... .Continuous Working time:About 100h portabe hardness testerProduct ModelLeeb hardness tester MH320 Technical SpecificationHardness scaleHL, HRC, HRB, HRA, HV, HB, HSMemory240 ... English menu, backlit display for easy operation MH320 Leeb Hardness Tester