Hardness tester LK120 Features: Easy one handed operation Digital Display Compact body for areas of restricted space Slim detector allows measurements to be taken on complex curved surfaces such as welds, moulds etc, as well as conventional flat surfaces Conversion function for different hardness scales Self calibrating Supplied with NAMAS certified test piece Used in any direction Lightweight, portable and easy to carry Using large-screen 128 * 64 dot matrix LCD module, information abundant and intuitive. Can be pre-set limit, hardness, when beyond the scope it automatic alarm, convenience customers batch test. English display: menu type operation, uses simple and convenient. Technical parameter: Measuring scope: HLD (170-960) HLD Measuring direction: support plummet, inclined, level, oblique, pure vertical measured material: Steel ,alloy steel, stainless steel, grey cast iron, ductile iron, zinc alloy, copper alloy ,casting of copper, , Copper alloy (brass, bronze), pure copper, forged steel . Hardness formats: HL,HB, HRB, HRC,HRA,HV,HS Display: high contrast segment code type LCD display Data storage: maximum 500 groups (impact times: 32-1) Paper width: 57.5¡À0.5£©mm Paper coil diameter: 30mm Work voltage: 6V Nimh batteries Work Time: about 150h, With power saving function like auto dormancy, automatic shutdown etc. Measuring direction: 360¡ã operating temperature: -10 ~ +50¡æ Shape dimension:213*80*215mm relative humidity: