Delta Gauges and Retroreflectometers

Retroreflectometer being used to measure a painted line. Retroreflectometers to Measure Retroreflectivity | PPG’s Traffic Solutions Business

DELTA Retroreflectometers measure  retroreflectivity of pavement markings. DELTA retroreflectometer instruments are available to properly measure  retroreflectivity  of pavement markings.  PPG’s Technical Services team has the knowledge and parts to service your instrument.  PPG Technical Services can also be contracted to perform retroreflectivity testing for your project. 

Under appropriate conditions the results are repeatable, reproducible and traceable to the National Institute of Standards and Technology (NIST) through an ISO 17025-certified testing and calibration laboratory. 

DELTA Marking Thickness Gauge
Our DELTA Marking Thickness Gauge is a digital devise for measuring the thickness of pavement markings dry, after application.
ENNIS-FLINT® by PPG DELTA Retroflectometers
DELTA LTL-M
This is a robust, reliable and advanced instrument designed for measuring all types of road markings at a simulated distance of 98 Feet with the highest level of accuracy.
DELTA LTL3000
This very easy to calibrate and operate, retroreflectometer  is part of a new generation of DELTA instruments for measuring retroreflection of road markings.
DELTA LTL3500
Part of a new generation of DELTA retroreflectometer instruments for measuring retroreflection of road markings and with modern design and materials.