Skip to main content

Delta upgrades its GR series of sign reflectometers with the GRX

Delta is launching RetroSign GRX for measuring night-time visibility of road traffic signs, high visibility clothing, licence plates and reflective tapes Delta said that the GRX is replacing its previous hand-held traffic sign retroreflectometers, the GR1 and GR3 that were launched a decade ago. Similar to its predecessor models, the RetroSign GRX is very easy to calibrate and operate. It adds new features allowing users to carry out a more complete measurement programme, for example, on road traffic
January 25, 2017 Read time: 2 mins
Delta has a grip on reflectometer technology
199 Delta is launching RetroSign GRX for measuring night-time visibility of road traffic signs, high visibility clothing, licence plates and reflective tapes

Delta said that the GRX is replacing its previous hand-held traffic sign retroreflectometers, the GR1 and GR3 that were launched a decade ago.

Similar to its predecessor models, the RetroSign GRX is very easy to calibrate and operate. It adds new features allowing users to carry out a more complete measurement programme, for example, on road traffic signs.

The instrument is offered in three base models: GRX-1, GRX-3 & GRX-7 where the digit in the name tells the number of observation angles being active.

The instrument can be delivered with up to seven entrance angles. This makes the instrument suitable for both field and laboratory use.

RetroSign GRX offers features include automatic colour recognition, picture of sign, background and legend colour retroreflection and contrast, scanning of barcodes and QR codes for asset management, instrument tilt and rotation, as well as US sign library.

The sign library will allow the GRX to instantly tell if a measurement has passed or failed.

All instruments come with all features included but only those purchased will be available to the user. If additional features are required in the future, they can easily be made available according to Delta.

RetroSign GRX comes with a calibration reference calibrated in Delta’s DANAK accredited calibration laboratory and is delivered with a free-of-charge accredited calibration certificate.

For more information on companies in this article

Related Content

  • Road markings essential for road safety
    March 16, 2012
    Road markings, along with laying and testing equipment, are all essential to make sure drivers get clear instructions. Patrick Smith reports Road markings are as important as signs, with longitudinal markings informing and warning road users of approaching situations that will require them to take some form of action.
  • Traficon’s new EYE-D recognition
    February 18, 2013
    Traficon says its first ever integrated Automatic Number Plate Recognition (ANPR) camera automatically recognises license plates from all over the world with the highest accuracy. The new EYE-D camera addresses a wide range of applications, including red light enforcement, automatic tolling, urban congestion charging, black/white list applications and average journey time monitoring. Equipped with a powerful infrared illumination, which enables it to monitor two lanes simultaneously up to a range of 60m dur
  • Estonia surveys major roads with a RetroTek-M retroreflectometer
    May 22, 2019
    During the past two years, Estonia’s Road Administration has clocked up 4,021km during a retroreflectivity project on all main state roads and on basic roads. Estonia’s Road Traffic Development Department of the Estonian Road Administration has been working with ERC Consulting to gather retroreflectivity data on road markings on all main state roads and basic roads. The work has shown that out of 1,609km of main state roads, 20% had problems. The reflective effect is created by glass beads on the surf
  • Testing high performance road markings
    February 9, 2012
    High performance markings are among the safety products used to guide traffic safely, but they must be tested and checked. Patrick Smith reports. Road construction zones, zebra crossings, tunnels and areas with frequent fog are particular focal points with regard to road user safety. This is why manufacturers, authorities and contractors are always eager to use innovative road markings and special studs or, where necessary, lane control devices to assist both drivers and pedestrians in all conditions, parti