Portable Leeb Hardness Tester ASTM A 956 Scales HB HL HRB HRC HS HV Measuring Range 0.1HRC 1HB 1HL 1HS 1HV 1MPa Resolution +/-6 HLD Indenter 0.79 USB Output Features Automatic Power Off Bluetooth Large Display with Backlight Low and High Limit Six Different Languages Touch Screen Operation Includes AC/DC Adapter Cleaning Brush Hardness Test Block D Impact Device D Pen for Touch Screen Printer Small Support Ring Software CD USB Cable and Software Disc