... -651)HB,(80-976)HV,(30-100)HS,(59-85)HRA,(13-100)HRBl Measuring direction: 360°l Hardness Scale: HL,HB,HRB ... impact times 32~1)l Working voltage: 3V(2 AA size alkaline battery)l Continuous working period: about 100 hours(With backlight off ... )l Communication interface:RS232Main Applicationl Die cavity ...