Ground Penetrating Radar (GPR) is a method that uses radar pulses to scan the subsurface. This non-destructive method uses high-frequency electromagnetic waves that detect underground utilities such as concrete, asphalt, metals, pipes, cables.
Unlike other locators, ground-penetrating radar can display images in real-time of exact location and depth of up to 12 feet. This determines any electrical conduits, rebar pattern, post-tensioned cables, measure slab thickness, width and depth of voids, PVC conduits, and cooling/heating lines.