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Groundtech GR-4 Dual
The Groundtech GR-4 Dual is the next-generation professional 3D ground scanning and metal detection system designed for treasure hunters, archaeologists, and geophysical researchers.
This dual-technology device combines MFS-2 Dual Sensor 3D scanning with an integrated Pulse Induction (PI) detector, allowing for precise detection of metals, cavities, tunnels, and other underground structures up to a depth of 15 meters.
Its compact design, advanced processing unit, and interactive touchscreen display provide real-time 3D visualization and accurate analysis of subsurface targets. The GR-4 Dual delivers unmatched accuracy, speed, and ease of use in all soil conditions, including highly mineralized or saline grounds.
Device Features
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Dual-Technology System: Combines 3D ground scanning (MFS-2 Dual Sensor) and Pulse Induction (PI) detector in one unit.
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Depth Detection: Capable of locating metals and underground cavities up to ~15 meters depending on soil type and target.
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Multi-Mode Scanning: 6 modes included:
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3D Ground Scan
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Live Scanning
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Pinpointer Mode
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Detector Quick Scan
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Detector Advanced Scan
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3D Ground Scanning Detector Mode
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Fast Processor & High-Sensitivity Sensors: Provides accurate and stable readings in complex soil conditions.
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Touchscreen Display: User-friendly interface showing 3D visualization and data analysis in real time.
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Mobile App Integration: Connects with the G-Portal app for Android & iOS for 3D/4D visual analysis.
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Multi-Language Support: Device supports 11 languages; app supports 25 languages.
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Rechargeable Lithium Battery (USB-C): Long-lasting power for extended field operations.
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Compact and Ergonomic Design: Lightweight for portability and comfortable operation in the field.
Why Choose GR-4 Dual?
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Dual-technology advantage: Combines 3D scanning and PI detection in a single device.
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Reliable in all soil conditions: Works effectively in mineralized, rocky, or saline soils.
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User-friendly design: Suitable for both professional explorers and beginners.
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Versatile applications: Metal detection, voids, tunnels, archaeological surveys, and treasure hunting.
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Excellent value: Combines multiple advanced technologies in one efficient, portable system.
Search Systems
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Pinpointer Mode: Precisely locates targets after initial detection.
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Live Scanning Mode: Instant detection of underground anomalies without fixed scanning patterns.
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Detector Quick & Advanced Scan Modes: Uses the PI detector for deep metal detection; quick scan for general use, advanced scan for precise depth and discrimination (ferrous vs non-ferrous).
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3D Ground Scanning Detector Mode: Conducts full 3D ground scanning, then switches to detector mode, with data exported to G-Portal for advanced visual analysis.
Package Contents
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Main Control Unit
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MFS-2 Dual Sensor
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Pulse Induction (PI) Coil
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Touchscreen Display & Control Panel
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Rechargeable Lithium Battery Pack with Charger
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Sensor Data Cable
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Sensor Mounting Bracket
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Ground Scan Handle
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3D Analysis Glasses
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User Manual & Quick Start Guide
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Padded Carrying Case
Technical Specifications
| Specification | Description |
|---|---|
| Brand | Groundtech Detectors |
| Model | GR-4 Dual |
| Technology | 3D Ground Scanning + Pulse Induction (PI) |
| Detection Depth | Up to 15 meters (depending on soil & target) |
| Detection Types | Metals, cavities, tunnels, underground structures |
| Display | Touchscreen, high-resolution color LCD |
| Connectivity | Wireless, G-Portal App (Android & iOS) |
| Languages (Device) | 11 languages |
| Languages (App) | 25 languages |
| Battery Type | Rechargeable Lithium Battery (USB-C) |
| Operating Time | Up to 10 hours continuous use |
| Weight | Lightweight, ergonomic design |
| Country of Manufacture | Turkey |
| Warranty | 2 years manufacturer warranty |


























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