GDI is a manufacturer and worldwide supplier for imaging groundradar, 3D metal detector, long range gold locator, magnetometer,data logger real time imaging systems for treasure hunting.

GDI geophysical instruments established in 1996. Our products are covered by 2 year warranty. manufacture a multi line of metal detectors, long range locators for gold, magnetometers, detectors location voids, tombs, tunnels, crypts, detector 3D data logger, custom made coils. Pendulum and dowsing rods. Treasure hunting, ...