... Data store 600 group Rechargeable Li-Ion battery Digital Portable Leeb hardness tester SHT-300 Features:Customaries curve for a specific testing ... impact devices.LCD display of 128×32 matrix is used.Hardness scales(HV ,HB,HRC,HRB,HRA,HS).RS232 interface ... more powerful to satisfy the more demands of quality control and management. Technical Specification: Hardness scaleHL, HB, HRB, HRC, HRA, HV, ...