ROLLING STRAIGHTEDGE, TRAVELLING BEAM (High-Low Detector)

ROLLING STRAIGHTEDGE, TRAVELLING BEAM (High-Low Detector)

CODE : A069

• Used for checking planeness/irregularities in concrete and bituminous road surfaces.
• The travelling beam is 3 meters long.
• Deviation of the surface is shown on a scale;
  • in increments of 2 mm from 0 - 10 mm
  • in increments of 5 mm from 10 - 25 mm