Mahr Federal 2191800 Pocket Surf IV Portable Surface Roughness Gage EGH-1019, 10 μm Radius, 9V Battery, LCD Display, PMD-190101 Specimen, Includes Test Certificate,Red/Gray

Pocket-sized economically priced, completely portable instrument which performs traceable surface roughness measurements on a wide variety of surfaces; can be used confidently in production, on the shop floor and in the laboratory. Can be used to measure any one of four, switch-selectable, parameters: Ra, Rmax/Ry, Rz. Out-of-range (high or low) and €œbattery low€œ signals are also displayed. our switchable probe positions €“ axial (folded) or at 90°, 180° or 270°.