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Flint Trading Inc., Thomasville, N.C., offers the DELTA RetroSign GR3 Sign Retroreflectometer (Circle 920) featuring triple-geometry observation angles along with WAAS GPS and RFID reader for quality control and asset management of road signs and retroreflective materials.

Flint Trading claims that the RetroSign GR3 is the only handheld instrument that sequentially measures retroreflectivity at observation angles of 0.2, 0.5 and 1° specified by ASTM and used by NTPEP.

The GR3’s point aperture geometry measures nighttime visibility by replicating realistic driving conditions as a driver approaches a sign. Retroreflectivity measurements can be taken safely during the day by various personnel instead of at night by trained personnel.

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