Available with 10 or 5 µm radius tip on provided general-purpose probe, Pocket Surf® IV displays Ra, Rz, or Rmax with one measurement stroke. MarConnect universal interface allows USB, RS-232, or Digimatic output of data by choosing appropriate cable, and LCD shows measured roughness value in microinches or micrometers within 0.5 sec after surface is traversed. Gauge offers 4 switchable probe positions — axial (folded) or at 90°, 180°, or 270° — and selectable traverse lengths.