Delta Retroreflectometer Products

The RSMA is the UK distributor of Delta retroreflectometer products.

For more than 30 years, instruments from DELTA's RoadSensor Division have been renowned for setting the pace in measurements of retroreflectivity of road signs and pavement markings.

High performance, quality in measurements, and reliable instrumentation guarantee optimum solutions in measurements of retroreflectivity – including adhering to the standards in the field such as ASTM and CEN.

To enquire about a Delta product please contact info@rsma.co.uk

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LTL-M: Mobile retroreflectometer for pavement markings

The modern, easy-to-use retroreflectometer

LTL-M, the DELTA mobile retroreflectometer for measuring night visibility (RL) of pavement markings at traffic speed, is a new generation of mobile systems – and has already achieved a significant market penetration. The system solution outperforms other similar systems by offering better and more sophisticated solutions to mobile retroreflective measurements, including night visibility RL, daylight contrast, marking width, road stud (RRPMs) presence, etc.

Retroreflectivity measurements can be acquired at normal traffic speed, and during day or night at the user’s preference, hence avoiding dangerous incidents, where an operator must make handheld measurements in a busy road. Over 3,000 kilometers of road can be measured in a normal working week.

Employing advanced camera-based techniques and real-time digital image processing ensure accurate measurement results under all driving conditions. Embedded features such as compensation of vehicle bouncing, vertical lifting, tilting, as well as handling of difficult measurement conditions for e.g. very curved roads, large variations in stripe profile height, etc. have positioned LTL-M at top in mobile systems and certainly ahead of the first generation of systems as seen from other suppliers.

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To enquire about this product please contact info@rsma.co.uk

LTL3000: Small and light weight handheld Retoreflectometer for RL & Qd

A new generation of road marking retroreflectometer

The LTL3000 is part of a new generation of DELTA retroreflectometer instruments for measuring retroreflection of road markings. The instrument is based on the latest technological developments and with modern design and materials. The LTL3000 is, like all other DELTA instruments, very easy to calibrate and operate and very user friendly. The instrument is of course robust and long lasting – like our earlier generations of road marking retroreflectometers – and on top of this small in size and light in weight.

The LTL3000 model is supporting not only night visibility (RL), but also daytime visibility (Qd) according to European and US standards. 

The LTL3000 measures all types of road markings at a simulated distance of 30 m with a high accuracy. The instrument operates with a reproducibility of +/- 5 % and a repeatability of +/- 2 %. The LTL3000 has a Rprofile capacity of 15 mm.

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To enquire about this product please contact info@rsma.co.uk

LTL3500: Small and light weight handheld Retoreflectometer for RL & Qd

A new generation of road marking retroreflectometer

The LTL3500 is part of a new generation of DELTA retroreflectometer instruments for measuring retroreflection of road markings. The instrument is based on the latest technological developments and with modern design and materials. The LTL3500 is, like all other DELTA instruments, very easy to calibrate and operate. The instrument is robust and long lasting – like our earlier generations of road marking retroreflectometers – and on top of this small in size and light in weight.

The LTL3500 model is supporting not only night visibility (RL), but also daytime visibility (Qd) according to European and US standards.

LTL3500 measures all types of road markings at a simulated distance of 30 m with high accuracy. The instrument operates with a reproducibility of +/- 5 % and a repeatability of +/- 2 %. The LTL3500 has a RL profile capacity of 15 mm.

LTL3500 is a very user-friendly and easy to operate instrument. The instrument is offered with many support features like: Extractable handle, GNSS, nighttime reflected color measurement, macro camera, overhead camera, orientation, air and marking temperature, relative humidity, road icon ID and external printer.

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To enquire about this product please contact info@rsma.co.uk

Marking Thickness Gauge: Easy Measument of thickness of pavement making

Measuring thickness of pavement stripes

The Marking Thickness Gauge measures the thickness of the paint and thermoplastic of pavement markings. The instrument is a simple, but efficient metric for ensuring correct thickness of pavement stripes. Particularly for thermoplastic stripes, where expensive material constitutes a significant part of the costs, control measures can be necessary.

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Road Marking Control Kit

Measure of various road marking parameters

Road Marking Control Kit is exclusively designed for quality control of road markings. The Road Marking Control Kit contains the following tools:

  • Marking Thickness Gauge
  • Wet Film Comb
  • Insertion Thermometer
  • Thermometer and Hygrometer
  • Electronic Weight
  • Illuminated Microscope
  • Magnifying Glass
  • Folding Ruler

Items in the Control Kit like electronic weight, insertion thermometer and wet film comb are for use in connection with application of markings assisting the applicator in carrying out self-control. The magnifying glass and illuminated microscope will allow for checking of glass bead presence and embedment.

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RetroSign GRX: Retroflectometer for signs and other retroflective materials

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 de facto 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.

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GRX Online: Production line monitoring of retroreflection properties of sheeting materials

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.

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To enquire about this product please contact info@rsma.co.uk

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