... , HRB, HRC,HRA,HV,HS; 3, LCD display Hardness gauge LK120Features:Easy one handed operationDigital ... carryUsing large-screen 128 * 64 dot matrix LCD module, information abundant and intuitive. Can be pre-set ... ,HRA,HV,HSDisplay: high contrast segment code type LCD displayData storage: maximum 500 groups (impact times: ... 32-1)Paper width:(57.5±0.5)mm Paper coil diameter: 30mmWork voltage: ...