Groundtech GR-4 3D Ground Scanner

Discover a new dimension of treasure hunting with the Groundtech GR-4 3D Ground Scanner, a next-generation deep exploration system designed for professional treasure hunters, archaeologists, and serious detectorists. Merging advanced dual-sensor technology with real-time 3D visualization, the GR-4 lets you detect underground anomalies, locate buried structures, and differentiate metals with incredible accuracy.

Whether you are hunting for deep-buried hoards, ancient relics, or mapping hidden voids like tunnels, chambers, and graves, the GR-4 delivers unmatched performance in a compact, field-ready design.

Key Features

• Advanced MFS-2 Dual Sensor Technology: Equipped with high-sensitivity gradiometer sensors (± 2000 µT) that minimize errors and deliver deeper, highly precise scanning results.
• Extreme Depth Capability: Reach depths of up to 15 meters (depending on soil composition and target size) to find targets far beyond the reach of standard metal detectors.
• Standalone Operation: No phone or tablet required in the field! View scanning modes, configurations, and instant graphic results directly on the device's built-in high-resolution color display.
• Comprehensive 3D & 4D Analysis: Sync your data via Bluetooth 4.2 BLE to the G-Portal mobile app (available for Android and iOS) to analyze targets graphically, separate ferrous from non-ferrous metals, and generate detailed reports.
• Versatile Scanning Modes: Seamlessly switch between 3D Ground Scanning, Live Scanning (for quick, unbound exploration), and a high-depth Pinpointer Function to lock onto target locations.
• Field-Adaptive Design: Features a foldable modular body structure, adjustable grip angle, and a removable sensor module for optimal portability and comfort.

Technical Specifications

• System Type: 3D Ground Scanner (Gradiometer)
• Sensor Technology: MFS-2 Dual Sensor Technology (± 2000 µT)
• Maximum Depth: Up to 15 meters (variable based on soil structure and object size)
• CPU / Processor: 240 MHz CPU with a 12-bit A/D converter
• Scanning Modes: 3D Ground Scanning, Live Scanning, Pinpointer Function
• 3D Analysis Software: G-Portal Application (Android & iOS compatible)
• Wireless Connectivity: Bluetooth 4.2 BLE
• Battery: 3.7 V Li-ion rechargeable battery
• Operating Time: Approximately 10 hours of continuous use
• Charging Interface: Type-C input (supports 25W fast charging adapters)
• Operating Temperature: 32°F to 158°F (0°C to 70°C)
• Multi-Language Support: 11 languages on-device / 25 languages via the mobile app
• Warranty: 2-Year Manufacturer Warranty

What’s Included in the Box?

• Groundtech GR-4 Main Unit (with integrated color display)
• MFS-2 Dual Sensor Module
• Heavy-Duty Carrying Bag
• Type-C Charging Adapter
• User Manual & Warranty Documentation