... , DL, C, D+15, E, GAll impact devices interchangeableMenu operationLarge LCD display with backlightRS232/USB interface to PC and micro-printerAutomatic ... A956.Model HR3000Principle Leeb hardness measurementAccuracy 0.5%@HL=800Display Large graphic LCD with EL backlightHardness scale HL/HRC/HRB/HB/HV/HSMeasuring ...