EN 1426, BS 2000-49, ASTM D5, AASHTO T 49
Main features
General description

The Travelling Beam Device is used for detecting surface irregularities in both concrete and asphalt pavement.

The apparatus comprises of a 3-meter length beam with rigid wheels at the extremes and the middle, which can detect any vertical deviation of the surface from a straight line between the two wheels at the ends of the machine.

Measuring the capacity of the device is ±25 mm with 5mm increments. It comprises manual dye marker which can mark irregular surfaces of the road.

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Technical specifications

Ordering info

AS 0165 Traveling Beam Device complete


AS 0165-1 Autographic Recorder.

AS 0165-2 Charts for Autographic Recorder.Pack of 10 rolls

AS 0165-3 Fibre-tipped Pen