Shipping Policy : Battery and Liquid not Included During the Shipping According to the measuring principle of the hardness of the Richter, a variety of metal materials can be tested for high precision. "Forging steel (Steel)" material is supported. When testing "forged steel" with D/DC type impact device, the value of HB can be read directly without manual lookup. Conveniently switch to all the hardness models (HL, HB, HRB, HRC, HRA, HV, HS), parallel conversion of each hardness test value. Functional characteristics: Data communication with USB interface, a variety of communication ways to adapt to the individual needs of different users. Data storage can store 48~350 groups (impact times 32~1), single measurement value, average value, date of measurement, direction of impact, frequency, material and hardness system. Technical Specifications: Measurement range HLD (170~960) HLD Measurement direction 360 degrees Display LCD, 128 x 64 graphics dot matrix liquid crystal Data storage 48~350 groups (impact times 32~1) The range of upper and lower limits is the same as the range of measurement. Rechargeable power source: 5VDC, 220VAC Charge time from 2 to 3.5 hours Battery 3.7V, (1400mAh) lithium battery Ambient temperature 0~40°C; Storage temperature -25 ~ 70°C The duration of the work is about 100 hours (without backlighting) Communication interface standard USB Size 179 x 77 x 35mm Weight: 175g Standard configuration:main unit,D type impact device; Small support ring; Nylon brush (I) High value Richter hardness block; Charger ;Communication cables Optional Accessories: Data processing software (computer application);