1.0Nanjing Roadsky Traffic Facility Co.,Ltd. (Roadsky Corporation)https://roadskymarking.com/itRainy Night Retroreflectometer for Road Markings - RoadSkyrich600338<blockquote class="wp-embedded-content" data-secret="UuCTVyc96J"><a href="https://roadskymarking.com/it/rainy-night-retroreflectometer-for-road-markings.html">Retroflettometro per segnaletica stradale nella notte di pioggia</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://roadskymarking.com/it/rainy-night-retroreflectometer-for-road-markings.html/embed#?secret=UuCTVyc96J" width="600" height="338" title="“Rainy Night Retroreflectometer for Road Markings” — Nanjing Roadsky Traffic Facility Co.,Ltd. (Roadsky Corporation)" data-secret="UuCTVyc96J" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script type="text/javascript">
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</script>https://roadskymarking.com/wp-content/uploads/2025/07/Rainy-Night-Retroreflectometer-for-Road-Markings-2.jpg600600The rainy night retroreflectometer for road marking is a portable on-site measurement instrument with an open light path, used to measure the retroreflection brightness coefficient of the marking line. Unit: mcd·m-2·lx-1. The main characteristics of its research are: simulating a motor vehicle driving on the road at night, the headlights shining on the markings (made of retroreflective material) on the road, and the brightness observed by the driver in the cab after reflection. The parameter measured is the nighttime retroreflective luminance coefficient, or RL value. This instrument can measure the marking line and the retroreflection brightness coefficient of the oscillating marking line under three conditions: dry R_L, wet R_(L_wet) and continuous rainfall R_(L_rain). Specifications: Measurement item: Retroreflection coefficient mcd.m-2.lx-1 Measurement value range: 0—4000 Observation angle: 1.05° Incident angle: 88.76°, complementary angle is 1.24° Light source color temperature: 2856±50K Measurement area: 250mm x 75mm Repeatability measurement error: ≤3% Battery continuous working time: >72h Data storage space: 16GB Built-in battery capacity: 13Ah ...