Zehntner ZRM 6006 Retroreflectometer RL/Qd

An Entry Level and Easy to Use Retroreflectometer

The Zehntner ZRM 6006 Retroreflectometer can measure both night visibility (RL) and day visibility (Qd) with the touch of a button. This budget friendly retroreflectometer focuses on the core functions to keep the Zehntner ZRM 6006 simple. This ultrafast retroreflectometer takes measurements in about 2 seconds and can be used on all types of road and airport markings. The transflective luminous graphical display allows for excellent visibility under all lighting conditions, including bright sunlight.

  • One button operation
  • Factory calibration is traceable to the Swiss Federal Institute of Metrology
  • Ultrafast retroreflection measurement (RL and Qd) in about 2 seconds
  • Budget priced, entry level
  • Use in dry or wet condition at any time of day or night on the road or in the laboratory
  • Profiled markings up to 12 mm can be measured
  • Determination of night visibility (RL) of road and airport markings
  • Determination of day visibility (Qd) of road and airport markings
  • Use on all types of road and airport markings
  • Field and laboratory use
  • Quality assessment

Transflective luminous LCD display with LED backlight


Measurement Modes
R L dry (night visibility)
R L wet (night visibility)
Qd (day visibility)
C/F (ambient temperature)
rH % (relative humidity)
Measuring Area
(WxL): 52mm x 218mm (2.05" x 8.6")

Measuring Range
RL: 0 - 4000 mcdm-2lx-1
Qd: 0 - 400 mcdm-2lx-1
Measuring Accuracy
Repeatability 2 %

Observation Angle
EN 1436 & ASTM E2302: 2.29
ASTM E1710: 1.05
Illumination Angle
RL: EN 1436: 1.24
RL: ASTM E1710: 88.76
Qd: diffuse
6.4kg (14.1 lbs)

Operating Temperature
-10C to +50C (14F to 122F), non condensing

ASTM E1710
ASTM E2177
ASTM E2302
EN 1436
EN 13197
CIE 54.2