The Zehntner ZRM 6010 RL is a premium, handheld external-beam retroreflectometer engineered for precise measurement of night visibility (RL) on road and airport markings—whether dry, wet, or under continuous wetting conditions. It features a high-visibility 5.7″ color touchscreen, fast 1-second measurement cycles, and intelligent electronics that compensate for stray light, while rugged ergonomics, a telescopic adjustable handle, and integrated options (GPS, camera, compass, level-meter, thermal printer) make it equally suited for field or lab use. Measurements are seamlessly exported and visualized using the included MappingTools software.