We employ cutting edge Laser field surveying, leveling and measuring equipment from industry leaders like Spectra Physics and Hilti to ensure we can get the most precise field specifications. We also employ much of the same equipment during installation for accurate placement and perfect results. Tolerances during measurement and field surveying is + or – 1/16th inch @ 3000 FT. Radius. Installation of equipment and systems is also within + or – 1/16th of an inch.