●Hardness scales：HL、 HRC、HRB、HV、HB、HS
●Accuracy: +/- 0.5%
●Repeatability Accuracy：HLD：±4 HRC：±1 HB：±4
●Standard impact device: impact device of Type D
●Upper / lower limits setting：（170～960）HLD
●Optional impact device: D/ C /DC / D+15 / DL/ G
●PC Interface: USB2.0
●Screen display: 128X64 dot matrix LCD,backlight and adjustable contrast
●Measuring direction:360°（Test at any angle even upside down）
●Data memory:100 group of readings
●Max.hardness of the measured work: 940HV（for D,DC,DL,D+15,C impact device）
●Radius of curvature of the measured work: Rmin=50mm（If using Alien Supporting ring, Rmin.=10mm）
●Recognition function：Recognize the type of the impact device by itself
●Type of the printer: Embedded thermal printers
●Measurable material：Steel and cast steel, alloy tool steel, stainless steel, gray cast iron, nodular cast iron, aluminum casting alloy, copper zinc alloy(brass), copper tin alloy(bronze), fine copper
●Detecting voltage automatically: alarm automatically when working voltage is less than rated voltage
●Power: Rechargeable lithium ion battery of 2*3.7v, 1300mAh
●Dimensions: 198mm x 82mm x 30mm
●Size: 0.32Kg
●Wireless transmission：Supporting Bluetooth transmission and wireless printing
