... formats: HL,HB, HRB, HRC,HRA,HV,HS; 3, Direct Thermal Hardness tester LK110AFeatures: Based on HL hardness measuring principle, ... date, impact direction, materials, hardness and other information systems. Thermal printer integrated with the instrument as a whole, working quiet, fast ... packCharging Power Supply: 9V/500ma; Charge Time 2.5 ~ 3.5 hourscontinuous working time: about 150 hours (not print, ...