Backlit liquid crystal TFT 5.7" 256 -colour display with touch screen technology; 46 parameters measured according to the international Roughness Index - profile-waveness 1000μm measurement range, auto travel according to cut-off, also selectable from 1 up to 10 times the cut-off (0.8 mm). Built-in thermal printer to display graph and numerical data reports, 0.001μm resolution, USB output. Portable laboratory roughness tester- Professional translator with internal metrological reference. Maximum traverse length of 50 mm. Precision measurement with 0.32 mm min traverse length ( 4 x 0.08 + 0.20 mm) SB10 and SB60 dual pick-up. For accurate roughness measurement: radial roughness (pipes, balls). With diamond sensor stylus.