TRAVELLING BEAM – Hi-Low Detector (A-069)
- 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
- Length : 3 m
- Equipped with scale (up to 25 mm)