The GRX Online Sensor is built for production line monitoring of the retroreflection properties of sheeting materials. Retroreflective sheeting materials are used for traffic signs, high visibility safety clothing, license plates and conspicuity materials.
The GRX Online Sensor measures retroreflection and calculates the RA value according to international CEN and ASTM standards. The instrument complies with requirements stated in EN 12899, EN 20471, ASTM E 1709, ASTM E 2540 and ASTM E 1809 (discontinued).
The GRX Online Sensor measures simultaneously the following entrance angles: 0.2; 0.33; 0.5; 0.7; 1.0; 1.5 and 2.0 degrees. The instrument can be delivered with either ASTM entrance angle of -4 degrees or CEN entrance angle of +5 degrees.