Hardness tester LK110A 1,Measuring scope:(170-960) HLD; 2,Hardness formats: ... ,HB, HRB, HRC,HRA,HV,HS; 3, Direct Thermal Hardness tester LK110AFeatures: Based on HL hardness measuring principle, can detect various ... feature. Built-in Ni-MH rechargeable batteries and charge control circuit; be not less than 150 hours of continuous work; with ...