Road Line Marking Retroreflectometer for Rainy night test

EW-408P road marking retroreflectometer is an open-optical-path designed small size portable on-site measuring instrument, the weight is 3.5kg. Main use is to measure the in-night brightness of road marking made of retroreflective material simulating under illumination from the headlights of vehicles driving on road, i.e, the in-night brightness observed by the driver in vehicle.

This instrument can measure the reticle and oscillating reticle retroreflection brightness system under three conditions: dry R_L, wet R_(L_wet) and continuous rainfall R_(L_rain).The measured parameter is the nighttime retroreflective brightness coefficient, namely RL value.

This instrument test result accurate and repeatable, simple to operate, can be used in laboratory or field.