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With the operating mode Magnetometer
When you're hunting a productive tidal zone
conductive silver
The laser-cut hexagon holes are precision-machined to consistent dimensions
PentaSense: The Multi-Sensor Scanning System with up to 5 Simultaneous Super Sensors
Groundtech GR-4 3D Ground Scanner detachable-earpiece With the operating mode MagnetometerThe Groundtech GR 4 is a next generation 3D ground scanner for professional treasure hunters, archaeologists, and serious detectorists who want deep exploration without depending on a phone in the field. Using advanced MFS 2 dual gradiometer sensors, the GR 4 reaches scanning depths of up to 49 feet (15 meters), detecting buried metals, magnetic objects, graves, rooms, and cavities such as tunnels. Its built in high resolution color display shows
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