Pmt metrology in association with gnehm harteprufer ag of switzerland presents swissrock 300 digital hardness tester. This tester uses gnehm patented system for the optical measurement of imprints by spirals.The text can be rapidly and easily edited and this isdue to the variety in its manufacturing. The large display offered with its full wording dialogue makes it easy even for a person who is not all experienced to perform exact measurements from the first trial on. The tester incorporates electro-motor for choice of the customer load automatically in the range from 1-250. It is also offered with digital programmable control panel with many user friendly functions like extremely large black and white 15 lines lcd display, alphanumerical text edition, 50 testing programs, help functions, technological information on hardness measurement, dynamical function keys. The tester is ergonomically designed with integrated light cap suitable for test procedures including vickers, brinell and rockwell. The test height is 320 mm and overhang 250 mm.