Day visibility retroreflectometer RetroSign GRX

handheldroad sign

RetroSign family of instruments the most frequently used Retroreflectometer for signs. The GRX retroreflectometer measures nighttime retroreflection of traffic signs, high visibility clothing, license plates and reflective tapes. It is a handy instrument for use on the roads and in production. GRX is the new instrument in the RetroSign family that over the years has become the most widely used solution worldwide for measurements of traffic sign retroreflectivity and a defacto standard in many regions of the world. GRX is intuitive in use. Measurements are taken in one second and data is easily transferred to a PC or a tablet. Built-in options for photos of signs, barcode reader, QR code reader, GPS, instrument rotation and tilt, sign facing direction and MUTCD sign library for automatic pass / fail of sign performance extend the instrument versatility significantly. A tablet extension allows the user in the field to transfer data for back-up, processing and presentation including mapping as well as sending data instantly to the company back office. Scalability Scalability of GRX- also after purchase – is an extremely powerful feature. Users can through software licensing upgrade their system in the field as their needs change. Point based technology for correct results with modern sheeting From the days of glass-bead based, symmetrical sign sheeting, two methods of measuring retroreflectivity exist, the annual geometry based method and the point geometry based methods. However, with modern microprismatic sheeting, a technology that is nonsymmetrical, only the point based method provides correct measurement results.