See Groundtech Discovery series [ Ссылка ] including Discovery SM and SMR Smart 3D Ground Scanning Detectors. This video covers detailed instructions for the Detection of Metal. Groundtech produces the most advanced deep seeking detectors in the world. Now, anyone can discover buried treasures, underground structures, caves, and hidden cavities with this easy to use 3D Imaging technology. See with your own eyes what lies beneath the earth in full color.

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