... and quickly measure a variety of metal materials, and instantly display the value of measured hardness. And it can swiftly convert ... capacity, long life, high-speed rechargeable NiMH battery pack. Chinese display, menu structure operation panel, used easy and convenient. The seven ... .4. Hardness scale: HL, HB, HRB/C, HRA, HV, HS5.Display: dot matrix LCD,128×64 dots6.Data memory: 500 groups max.(relative ...