The Groundtech GR-4 represents a breakthrough in 3D ground scanning and metal detection technology. Equipped with the MFS-2 Dual Sensor (Gradiometer), this powerful system analyzes subsurface variations with exceptional detail, revealing gold, buried artifacts, tunnels, and cavities beneath the ground.
The GR-4 offers multiple operating modes, including 3D Ground Scan, Live Scan, and Pinpointer, allowing users to perform both wide-area exploration and focused target analysis. Its built-in software and Bluetooth connectivity make it easy to visualize underground data in real time using the Groundtech mobile application, compatible with Android and iOS.
Built for professional and hobbyist treasure hunters alike, the GR-4 is designed to perform under all field conditions, offering high-speed processing, multilingual interface, and a durable rechargeable Li-ion battery that lasts up to 10 hours. With a maximum scanning depth of 15 meters, this compact yet powerful unit is one of the most reliable 3D ground scanners available today.
Groundtech GR-4 – Technical Specifications
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Sensor Technology: MFS-2 Dual Sensor (Gradiometer)
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Maximum Depth: Up to 15 meters
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Search Modes: 3D Ground Scan, Live Scan, Pinpointer, Advanced Scan Modes
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Processing: 240 MHz CPU with 12-bit A/D converter
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Operation: Standalone device with built-in display + mobile app support
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Languages: Multi-language interface + mobile app in many languages
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Battery: 3.7 V Li-ion rechargeable
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Operating Time: ~10 hours under normal scan usage
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Connectivity: Bluetooth for app connectivity
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Operating Temperature: 0 °C to 70 °C
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Storage Temperature: –20 °C to 60 °C
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Warranty: 2 years
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