Zehntner ZDR 6020 RL

Vehicle-mounted retroreflectometer for safe and efficient continuous measurements

The Zehntner ZDR 6020 RL is a dynamic, vehicle-mounted retroreflectometer optimized for safe, high-speed measurement of night visibility (RL) on road and airport markings. Delivering handheld-level precision at speeds up to 150 km/h, it captures continuous data—up to 300 measurements per second—without disrupting traffic. All essential data (RL values, GPS, temperature, humidity, images, voice notes, timestamps) are recorded in real time via an industrial-grade touchscreen tablet, while MappingTools software enables immediate mapping and analysis.

Features

Vehicle-mounted system enabling continuous measurements at up to 150 km/h
Ultra-fast acquisition: 300 measurements per second
Handheld-level precision even at high speeds
Industrial-grade rugged touchscreen tablet with onboard RetroGrabber software
Simultaneous logging of RL, GPS/DR positioning, ambient temp and humidity, speed, images, voice annotations, date/time
Integrated camera capturing images at regular intervals (e.g., every 10 m)
MappingTools software for visualization and reporting
Capable of distinguishing and separately storing double/triple line markings
Compliant with RL standards (EN 1436, ASTM E1710, ASTM E2177); certified by StrAus-Zert

Applications

Continuous night-visibility monitoring of road markings
Road safety and marking quality audits
Airport runway marking assessment
High-speed road network inspection
Data-driven infrastructure maintenance planning

Technical Data

Parameter	Specification
Measurement Mode	RL (night visibility)
Measurements per Second	300
Maximum Vehicle Speed	Up to 150 km/h
Measuring Area (WxL)	≥ 1000 mm × 880 mm
Measuring Distance Ahead	~6 m
Observation Angle	EN 1436: 2.29°; ASTM E1710: 1.05°
Illumination Angle	EN 1436: 1.24°; ASTM E1710: 88.76°
Measuring Range	RL: 0–4 000 mcd·m⁻²·lx⁻¹
Camera Capture	Image recorded every ~10 m
Display	Rugged industrial-grade touchscreen tablet (RetroGrabber)
Recorded Data	RL, GPS/DR, speed, temperature, humidity, images, voice notes, date/time
Weight (Measuring Head)	~10.5 kg
Operating Temperature	0 °C to +55 °C
Standards Compliance	EN 1436, ASTM E1710, ASTM E2177; StrAus-Zert certified

Tags: continuous measurement, dynamic retroreflectometer, high-speed, mapping tools, night visibility, RL measurement, road safety, staticvsdynamic, touchscreen tablet, vehicle mounted

Tags:

staticvsdynamic, dynamic retroreflectometer, vehicle mounted, night visibility, continuous measurement, high-speed, road safety, mapping tools, touchscreen tablet, RL measurement