- The optical system designed by our senior optical engineer not only meet the definition of hardness testing requirements, but also can observe the micro structure of the material, image is very clear. - With Vickers hardness and Knoop hardness testing capabilities. - By measuring the indentation diagonal length, the hardness value will show on the screen directly, no need to check hardness table. - Large size touch screen can direct display hardness value, conversion hardness, testing method, testing force, dwell time, testing times and testing process. - Reserved CCD camera optical path, support machine work with computer and hardness measuring software system.