MH320 portable Hardness tester 1.Hardness Scale:HL,HB,HRB,HRC, ... ,HV,HS 2.Display:dot matrix LCD,128*64 dots MH320 portable Hardness testerTechnical Specifications:Measuring range:HLD(170~960)HLDMeasuring ... , no printing)Communication interface:USB1.1Outline dimensions:212×80×32mm MH320 portable Hardness tester