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The Zehntner ZDR 6020 RL is a high-precision, vehicle-mounted retroreflectometer built to advance road safety by ensuring that road markings always remain visible and compliant. Capable of operating at speeds up to 150 km/h, it enables large-scale road surveys to be carried out without interrupting live traffic, making it both safer for survey teams and more efficient for transport authorities.
With the ability to automatically recognize single, double, and triple lane markings up to 1 meter wide, the ZDR 6020 RL delivers complete and accurate coverage for safety-critical audits. Its integrated high-resolution camera captures GPS-tagged images every 10 meters, providing clear evidence of sections where poor retroreflection could endanger drivers. Even in tunnels and urban areas with limited GPS reception, its Dead Reckoning GPS technology guarantees uninterrupted data logging, so no potential safety hazard is overlooked.
ZDR 6020 RL is fully compliant with EN 1436, ASTM E1710, and IRC 35-2015 and supplies audit-proof, regulation-ready data that transport authorities, contractors, and consultants can rely on to meet international safety standards. Whether used on highways, urban corridors, or airport runways, it ensures that road networks remain safe, visible, and ADAS-compatible, reducing accident risks and improving night-time and all-weather driving conditions.
As India accelerates infrastructure programs like Bharatmala Pariyojana and Smart City Missions, the demand for high-quality, reflective road markings is directly tied to driver safety and efficient mobility. The ZDR 6020 RL serves as a vital tool in building and maintaining safer road networks, protecting lives, and supporting smarter, future-ready transportation systems.
Applications
Key Features
TECHNICAL SPECIFICATIONS
|
Features |
Specifications |
|
Measurement Rate |
≥ 300 measurements per second |
|
Observation Distance |
30 m |
|
Observation Angle |
EN 1436: 2.29°; ASTM E1710: 1.05° |
|
Illumination Angle |
1.24° (EN 1436), Entrance Angle: 88.76° (ASTM E1710) |
|
Measuring Area |
≥ 1000 mm (W) x 880 mm (L) |
|
Measuring Distance |
6 m |
|
Measuring Speed |
Up to 150 km/h |
|
Measurement Range (RL) |
0-4,000 mcd/m²/lux |
|
Measurement Modes |
RL, Day Contrast (DC), GPS, Temperature, Humidity, Speed, Image, Voice, Time |
|
Trigger Mode |
Automatic (distance-based or time-based) |
|
Camera |
Integrated auto-iris camera with 10 m interval picture sequence |
|
Voice Recorder |
Microphone included for live annotations |
|
GPS |
With Dead Reckoning (DR) for tunnels/urban environments |
|
Power Supply |
12-16 VDC; Nominal: 20 A; Max: 33 A; Fused at 40 A |
|
Laser Classification |
Class 2 |
|
Environmental Range |
Operating: 0°C to +55°C; Storage: -15°C to +60°C. Non-condensing humidity |
|
Software |
Retro Data Grabber with Mapping Tools for visualization and reporting |
|
File Format |
Tab-separated, open-source ".xls" format compatible with Excel/Text editors |
|
Standards Compliance |
EN 1436, ASTM E1710, ASTM E2177, IRC 35-2015 |
|
Safety & EMC |
EN 60950-1, EN 50371, EN 55022, EN 55024 |
|
Certification |
StrAus-Zert, Germany (Test No. 0913-2009-05) |
|
Dimensions (LxWxH) & Weight of Measuring Head |
270 mm × 207 mm × 310 mm & 10.5 kg |
|
Dimensions (LxWxH) & Weight of Power Supply Unit (Car Box) |
360 mm × 150 mm × 450 mm & 8.5 kg |
RL average values, day contrast ratio, GPS coordinates, chainage (position in km/miles), ambient temperature (°C/°F), relative humidity (rH%), driven average speed, picture, voice recording as well as date and time.
The number depends on the driven speed and the chosen average interval. The system has a measuring frequency of 300 Hz. Usually, 680 measurements are used for calculating the average value if the driving speed is 90 km/h and the average interval is 100 m.
Number of taken at 90km/h = 12 measurements per meter
GPS coordinates and chainage is automatically recorded and stored to the RL average values. Furthermore, we provide the possibility that the co-driver can insert references with the EVENT-buttons on our RetroGrabber software (e.g. roundabout, bridge, tunnel, wet, etc.) on the laptop which will also be stored. Additional pictures can also be taken every 10 m (32.81 ft), automatically, which will be stored to the RL value.
The Zehntner ZDR 6020 RL is a vehicle-mounted dynamic retroreflectometer used for continuous measurement of road marking retroreflection (RL) at traffic speeds without stopping the inspection vehicle.
The ZDR 6020 RL supports high-precision retroreflection measurement up to approximately 4000 mcd/m²/lx.
The device can test lane markings, pedestrian crossings, stop lines, airport runway markings, thermoplastic markings, and other reflective pavement markings.
Wet-night visibility testing helps ensure road markings remain visible during rain, improving driver safety and traffic guidance.
The ZDR 6020 RL complies with major international standards including EN 1436, ASTM E1710, IRC 35-2015 and other global retroreflection testing specifications.
Yes, the device is designed for highly accurate and repeatable field measurements required for professional road safety audits and quality assurance.
Yes, integrated GPS functionality allows georeferenced measurement recording and location tracking of inspection points.
GPS tagging helps maintain accurate inspection records, supports GIS integration, and simplifies maintenance planning for road authorities.
Yes, the device is widely used for highways, municipal roads, airports, industrial zones, and pavement marking inspections.
Yes, it is suitable for testing retroreflection performance of airport runway and taxiway markings.
Yes, it is extensively used for quality assurance, acceptance testing, maintenance evaluation, and compliance verification of road markings.
Yes, the system performs continuous RL measurements in real time while the vehicle is moving.
Yes, it is specifically designed for highway, expressway, airport runway, and municipal road retroreflection surveys.
Yes, the ZDR 6020 RL is designed as a vehicle-mounted retroreflectometer system for high-speed road inspections and large-scale pavement marking surveys.
Dynamic measurement means the system can continuously measure road marking visibility while mounted on a moving vehicle, eliminating the need for manual stop-and-measure inspections.
Vehicle-mounted systems allow faster inspections, continuous measurements, reduced lane closures, improved operator safety, and higher productivity.
The system supports: • 2.29° (EN 1436) • 1.05° (ASTM E1710) and IRC 35-2015
The system uses a 30-meter observation distance, simulating real driver visibility conditions during nighttime driving.
Yes, the system includes advanced GPS with Dead Reckoning (DR) capability.
The system operates on 12–16 VDC with: • Nominal current: 20 A • Maximum current: 33 A • Fused at: 40 A
Measuring head dimensions: 270 × 207 × 310 mm Weight: 10.5 kg
RL average values, day contrast ratio, GPS coordinates, chainage (position in km/miles), ambient temperature (°C/°F), relative humidity (rH%), driven average speed, picture, voice recording as well as date and time.
The number depends on the driven speed and the chosen average interval. The system has a measuring frequency of 300 Hz. Usually, 680 measurements are used for calculating the average value if the driving speed is 90 km/h and the average interval is 100 m.
Number of taken at 90km/h = 12 measurements per meter
GPS coordinates and chainage is automatically recorded and stored to the RL average values. Furthermore, we provide the possibility that the co-driver can insert references with the EVENT-buttons on our RetroGrabber software (e.g. roundabout, bridge, tunnel, wet, etc.) on the laptop which will also be stored. Additional pictures can also be taken every 10 m (32.81 ft), automatically, which will be stored to the RL value.
The Zehntner ZDR 6020 RL is a vehicle-mounted dynamic retroreflectometer used for continuous measurement of road marking retroreflection (RL) at traffic speeds without stopping the inspection vehicle.
The ZDR 6020 RL supports high-precision retroreflection measurement up to approximately 4000 mcd/m²/lx.
The device can test lane markings, pedestrian crossings, stop lines, airport runway markings, thermoplastic markings, and other reflective pavement markings.
Wet-night visibility testing helps ensure road markings remain visible during rain, improving driver safety and traffic guidance.
The ZDR 6020 RL complies with major international standards including EN 1436, ASTM E1710, IRC 35-2015 and other global retroreflection testing specifications.
Yes, the device is designed for highly accurate and repeatable field measurements required for professional road safety audits and quality assurance.
Yes, integrated GPS functionality allows georeferenced measurement recording and location tracking of inspection points.
GPS tagging helps maintain accurate inspection records, supports GIS integration, and simplifies maintenance planning for road authorities.
Yes, the device is widely used for highways, municipal roads, airports, industrial zones, and pavement marking inspections.
Yes, it is suitable for testing retroreflection performance of airport runway and taxiway markings.
Yes, it is extensively used for quality assurance, acceptance testing, maintenance evaluation, and compliance verification of road markings.
Yes, the system performs continuous RL measurements in real time while the vehicle is moving.
Yes, it is specifically designed for highway, expressway, airport runway, and municipal road retroreflection surveys.
Yes, the ZDR 6020 RL is designed as a vehicle-mounted retroreflectometer system for high-speed road inspections and large-scale pavement marking surveys.
Dynamic measurement means the system can continuously measure road marking visibility while mounted on a moving vehicle, eliminating the need for manual stop-and-measure inspections.
Vehicle-mounted systems allow faster inspections, continuous measurements, reduced lane closures, improved operator safety, and higher productivity.
The system supports: • 2.29° (EN 1436) • 1.05° (ASTM E1710) and IRC 35-2015
The system uses a 30-meter observation distance, simulating real driver visibility conditions during nighttime driving.
Yes, the system includes advanced GPS with Dead Reckoning (DR) capability.
The system operates on 12–16 VDC with: • Nominal current: 20 A • Maximum current: 33 A • Fused at: 40 A
Measuring head dimensions: 270 × 207 × 310 mm Weight: 10.5 kg
RL average values, day contrast ratio, GPS coordinates, chainage (position in km/miles), ambient temperature (°C/°F), relative humidity (rH%), driven average speed, picture, voice recording as well as date and time.
The number depends on the driven speed and the chosen average interval. The system has a measuring frequency of 300 Hz. Usually, 680 measurements are used for calculating the average value if the driving speed is 90 km/h and the average interval is 100 m.
Number of taken at 90km/h = 12 measurements per meter
GPS coordinates and chainage is automatically recorded and stored to the RL average values. Furthermore, we provide the possibility that the co-driver can insert references with the EVENT-buttons on our RetroGrabber software (e.g. roundabout, bridge, tunnel, wet, etc.) on the laptop which will also be stored. Additional pictures can also be taken every 10 m (32.81 ft), automatically, which will be stored to the RL value.
The Zehntner ZDR 6020 RL is a vehicle-mounted dynamic retroreflectometer used for continuous measurement of road marking retroreflection (RL) at traffic speeds without stopping the inspection vehicle.
The ZDR 6020 RL supports high-precision retroreflection measurement up to approximately 4000 mcd/m²/lx.
The device can test lane markings, pedestrian crossings, stop lines, airport runway markings, thermoplastic markings, and other reflective pavement markings.
Wet-night visibility testing helps ensure road markings remain visible during rain, improving driver safety and traffic guidance.
The ZDR 6020 RL complies with major international standards including EN 1436, ASTM E1710, IRC 35-2015 and other global retroreflection testing specifications.
Yes, the device is designed for highly accurate and repeatable field measurements required for professional road safety audits and quality assurance.
Yes, integrated GPS functionality allows georeferenced measurement recording and location tracking of inspection points.
GPS tagging helps maintain accurate inspection records, supports GIS integration, and simplifies maintenance planning for road authorities.
Yes, the device is widely used for highways, municipal roads, airports, industrial zones, and pavement marking inspections.
Yes, it is suitable for testing retroreflection performance of airport runway and taxiway markings.
Yes, it is extensively used for quality assurance, acceptance testing, maintenance evaluation, and compliance verification of road markings.
Yes, the system performs continuous RL measurements in real time while the vehicle is moving.
Yes, it is specifically designed for highway, expressway, airport runway, and municipal road retroreflection surveys.
Yes, the ZDR 6020 RL is designed as a vehicle-mounted retroreflectometer system for high-speed road inspections and large-scale pavement marking surveys.
Dynamic measurement means the system can continuously measure road marking visibility while mounted on a moving vehicle, eliminating the need for manual stop-and-measure inspections.
Vehicle-mounted systems allow faster inspections, continuous measurements, reduced lane closures, improved operator safety, and higher productivity.
The system supports: • 2.29° (EN 1436) • 1.05° (ASTM E1710) and IRC 35-2015
The system uses a 30-meter observation distance, simulating real driver visibility conditions during nighttime driving.
Yes, the system includes advanced GPS with Dead Reckoning (DR) capability.
The system operates on 12–16 VDC with: • Nominal current: 20 A • Maximum current: 33 A • Fused at: 40 A
Measuring head dimensions: 270 × 207 × 310 mm Weight: 10.5 kg
RL average values, day contrast ratio, GPS coordinates, chainage (position in km/miles), ambient temperature (°C/°F), relative humidity (rH%), driven average speed, picture, voice recording as well as date and time.
The number depends on the driven speed and the chosen average interval. The system has a measuring frequency of 300 Hz. Usually, 680 measurements are used for calculating the average value if the driving speed is 90 km/h and the average interval is 100 m.
Number of taken at 90km/h = 12 measurements per meter
GPS coordinates and chainage is automatically recorded and stored to the RL average values. Furthermore, we provide the possibility that the co-driver can insert references with the EVENT-buttons on our RetroGrabber software (e.g. roundabout, bridge, tunnel, wet, etc.) on the laptop which will also be stored. Additional pictures can also be taken every 10 m (32.81 ft), automatically, which will be stored to the RL value.
The Zehntner ZDR 6020 RL is a vehicle-mounted dynamic retroreflectometer used for continuous measurement of road marking retroreflection (RL) at traffic speeds without stopping the inspection vehicle.
The ZDR 6020 RL supports high-precision retroreflection measurement up to approximately 4000 mcd/m²/lx.
The device can test lane markings, pedestrian crossings, stop lines, airport runway markings, thermoplastic markings, and other reflective pavement markings.
Wet-night visibility testing helps ensure road markings remain visible during rain, improving driver safety and traffic guidance.
The ZDR 6020 RL complies with major international standards including EN 1436, ASTM E1710, IRC 35-2015 and other global retroreflection testing specifications.
Yes, the device is designed for highly accurate and repeatable field measurements required for professional road safety audits and quality assurance.
Yes, integrated GPS functionality allows georeferenced measurement recording and location tracking of inspection points.
GPS tagging helps maintain accurate inspection records, supports GIS integration, and simplifies maintenance planning for road authorities.
Yes, the device is widely used for highways, municipal roads, airports, industrial zones, and pavement marking inspections.
Yes, it is suitable for testing retroreflection performance of airport runway and taxiway markings.
Yes, it is extensively used for quality assurance, acceptance testing, maintenance evaluation, and compliance verification of road markings.
Yes, the system performs continuous RL measurements in real time while the vehicle is moving.
Yes, it is specifically designed for highway, expressway, airport runway, and municipal road retroreflection surveys.
Yes, the ZDR 6020 RL is designed as a vehicle-mounted retroreflectometer system for high-speed road inspections and large-scale pavement marking surveys.
Dynamic measurement means the system can continuously measure road marking visibility while mounted on a moving vehicle, eliminating the need for manual stop-and-measure inspections.
Vehicle-mounted systems allow faster inspections, continuous measurements, reduced lane closures, improved operator safety, and higher productivity.
The system supports: • 2.29° (EN 1436) • 1.05° (ASTM E1710) and IRC 35-2015
The system uses a 30-meter observation distance, simulating real driver visibility conditions during nighttime driving.
Yes, the system includes advanced GPS with Dead Reckoning (DR) capability.
The system operates on 12–16 VDC with: • Nominal current: 20 A • Maximum current: 33 A • Fused at: 40 A
Measuring head dimensions: 270 × 207 × 310 mm Weight: 10.5 kg
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