...Sign Retroreflectometer Retroreflectometer is a portable on-site measuring instrument, used for the determination of night visibility of traffic signs and safety garments. Designed with high precision and high stability structure, The sign retroreflectometer...
...Sign Retroreflectometer Retroreflectometer is a portable on-site measuring instrument, used for the determination of night visibility of traffic signs and safety garments. Designed with high precision and high stability structure, The sign retroreflectometer... more
... and adopts 2856K standard light source and detector conforming to the matching efficiency of human eyes to measure the retroreflection coefficient of such reflective materials as reflective signs and reflective films. It is in compliance with GB7258 and ...
... and adopts 2856K standard light source and detector conforming to the matching efficiency of human eyes to measure the retroreflection coefficient of such reflective materials as reflective signs and reflective films. It is in compliance with GB7258 and ... more