Benkelman Beam utilizes the technique of using balanced beam in conjugation with a suitable vehicle to measure road flexure.The above Benkelman Beam is a convenient , accurate device for measuring the deflect ion of flexible pavements under moving wheel s loads . Operating on a simple lever arm principle, the unit consists of a Reference beam, Body, two par t Probe Beam and Rear Zero adjust. FeaturesLight weight aluminum constructionEase of TransportationUnique Telescopic Design, simplifying field setupCompact which reduces the amount of storage spaceSupplied withDial gauge range 0.01 x 25mmTravel and carrying case