The Surfcorder SE-3500K instrument is a 3D version of the PC windows controlled SE-3500. The instrument incocrporates  a highly accurate 100mm transverse drive table and Kosaka 3D software which covers most worldwide roughness parameters in us today.  The unit is highly versatile for general 3D control of surface roughness at most levels.  Its high specification include vertical magnifications up to x 100,000 and horizontal to x5000 with a sampling interval of down to 1um.  Both SE-3500 series instruments  use standard Surfcorder  pick-ups and styli.