Check hardness on most metals. True hand-held compact model. - Features and Benefits :. Conforms to ASTM A 956. Quick and reliable. Wide measuring range: direct display ofconverted hardness values in Rockwell HRB,HRC, Vickers HV, Brinell HB and Shore HS. Impact device provides testing at any angle,even upside down. 1250 data point memory with USB output. Min/Max/Avg. CE and RoHS approved. Specifications :. Measurement Accuracy: ?0.5percent Battery life: 16 hours continuousAuto Power Off: After 2 minutes of inactivityDisplay Options: Hardness scale, hardnessvalue, average indicator and average value,impact direction, type of impact deviceconnected, memory referenceDimensions: 6.2 x 1.6 x 1 in.(158 x 41 x 26mm)Weight: 4.2 oz. (120g). Includes :. Main unit. Impact device. Cleaning brush. Software and USB cable. Certificate. Carrying case. User?s manual