Jeohunter 3D Dual System Jeohunter 3D Dual System SUPERIOR TECHNOLOGY AT METAL AND CAVITY DETECTION Jeohunter 3D Dual System is designed and manufactured using the latest technologies. This system is the World’s most advanced detector for locating precious metals and detecting hidden cavities. Jeohunter 3D Dual System is a deep penetrating detector. The system uses advanced discrimination to accurately classify metal targets in to four groups: Gold, Non-ferrous, Steel and Iron In addition to accurately detecting and analyzing metal objects, Jeohunter 3D Dual System is also capable of detecting cavities underground like caves, cellars, tunnels, shelters and graves in real time