1.Memory: 4000 data 2.USB for charging or printing, Bluetooth(optional) 3.Manual operation in English or Chinese HARDNESS TESTER HARTIP 1800DESCRIPTIONHARTIP1800 is an advanced state-of-the-art palm sized metal hardness tester with many new features. Which is light weight, easy operation, integrated design, high contrast display, low operating temperature, auto compensating for impact direction ...