... for special application. Automatically identify the type of impact devices.l Large capacity memory could store 500 groups (Relative to average ... , testing date, impact direction, impact times, material and hardness scale etc.l Upper and lower limit can be preset. It will alarm ... Specificationsl Measuring range:HLD(170~960)HLDl Measuring direction:360°l Hardness Scale:HL,HB,HRB,HRC,HRA,HV,HSl Display:dot ...