Roughness testers are used to determine quickly the surface roughness. Roughness testers show the measured roughness depth Rz as well as the mean roughness value Ra in µm. Roughness testers allows to determine quickly the a material surface roughness. The measurement of surface roughness is very easy. Roughness testers get in contact with surfaces within few seconds and show the roughness value in Ra or in Rz. Our Roughness testers are delivered with control cards, probe protection, accumulators and chargers inside a carrying case. Roughness testers are compatible with the following standards and regulations: DIN 4762, DIN 4768, DIN 4771, DIN 4775, and DIN 4766-1 dealing with the range of surface roughness.