Description   GREAT 5000 We offer the world’s first device with the latest technology in the world of hardware A detailed explanation of how to use the entire device, which operates six research systems to detect gold And buried treasures .   SYSTEMS THAT THE DEVICE WORKS System 1: The long-range ion system System 2: the electromagnetic system System 3: Ground Survey System 3D System 4: The system of discrimination between Metals System 5:Direct horizontal imaging system System 6: Direct Vertical Imaging System