A retroreflectometer meaures the retroreflectivity of a road marking or a road sign. Using a retroreflectometer is the only way to objectively evaulate if a road marking or a road sign provides the minimum retroreflection level stated in our local authorities’ standard – and thus provides the best possible guidance to safe driving under various driving conditions. DELTA’s retroreflectometers can in seconds measure the retroreflection and provide a non disputable result and proof whether a road marking or a road sign meet or fails the standard guidelines.

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