Groundtech GR-4 Dual 3D Ground Scanner and Metal Detector


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- EUR: € 1.870,89

- EUR: € 579,09

- EUR: € 4.009,05
- EUR: € 2.494,52
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Groundtech GR-4 Dual 3D Ground Scanner and Metal Detector
The Groundtech GR-4 Dual combines 3D ground scanning and pulse-induction metal detection. Its GR4 detector display supports field review without a phone.
The Groundtech GR-4 Dual displays ground scans on its own screen. The GR4 detector also provides a separate pulse-induction mode for conductive targets.
Groundtech GR-4 Dual 3D Ground Scanner and Metal Detector Technology
The Groundtech GR-4 Dual is a 3D ground scanner and metal detector with a built-in colour display. Review GR4 detector survey data in the G-Portal app when a more detailed record is needed.
The GR-4 Dual uses a dual-sensor ground scanner for 3D analysis and a separate pulse-induction mode for metal targets. Select the appropriate GR4 detector system and record soil conditions before interpreting results.
Ground Scanning Comparison: GR-4 3D Ground Scanner vs. GR-4 Dual 3D Ground Scanner and Metal Detector
| Feature | GR-4 3D Ground Scanner | GR-4 Dual 3D Ground Scanner and Metal Detector |
|---|---|---|
| System Type | 3D Earth Scanner | 3D Scanner + PI Metal Detector |
| Pulse Induction | Not Included | Integrated (1 kHz) |
| Mineralized Soil | Standard Performance | PI mode designed for difficult mineralized soil |
| Battery Life | 10 Hours | 6 Hours (PI) / 10 Hours (3D) |
GR-4 Dual Ground Scanning and Metal Detection Modes
- 1. 3D Ground Scanning
Detects anomalies underground (metals, magnetic objects, void structures) and allows for 3D analysis directly on the device screen. - 2. Live Scanning
Provides real-time visual feedback of what is currently beneath the sensor. - 3. Pinpointer
Helps in precisely locating the exact center of the detected target. - 4. Detector Quick Scanning
Uses the PI system for fast detection of ferrous and non-ferrous metals. - 5. Detector Advanced Scanning
A deeper, more detailed Pulse Induction mode for challenging terrains and deep targets.
GR-4 Dual Scanner and Metal Detector Package Contents
- ✔ GR-4 Dual 3D Ground Scanner and Metal Detector Main Unit
- ✔ Detachable Sensor Module
- ✔ PI Search Coil
- ✔ Type-C 25W Charger
- ✔ Hard Transport Case
- ✔ Warranty Certificate (2 Years)
GR-4 Dual Ground Scanning Software and 3D Analysis
The Groundtech GR-4 Dual can operate with its built-in screen. For further 3D/4D review and reporting, the GR4 detector can send ground-scanning records to G-Portal.
GR-4 Dual Scanner and Metal Detector Technical Specifications
GR-4 Dual Scanner and Metal Detector Detailed Specifications
| 1. System | 3D Ground Scanner + Pulse Induction Detector |
|---|---|
| 2. Sensor Technology | MFS-2 Dual Sensor (Gradiometer) ± 2000 µT |
| 3. Detector Tech | Pulse Induction – 1 kHz frequency |
| 4. CPU / Converter | 240 MHz CPU – 12-bit A/D converter |
| 5. Max Depth (3D) | Up to 15 Meters (Soil dependent) |
| 6. Max Depth (Detector) | Up to 3 Meters (Soil dependent) |
| 7. Display | Built-in Color Screen (Standalone) |
| 8. Wireless Connection | Bluetooth 4.2 BLE |
| 9. Battery | 3.7 V Li-ion rechargeable battery |
| 10. Battery Life | 6 Hours (PI Detector) / 10 Hours (3D Scan) |
| 11. Charging | Type-C 25W charging adapter |
| 12. Languages | Device: 11 Languages / App: 25 Languages |
| 13. Operating Temp | 0°C to 70°C |
| 14. Storage Temp | -20°C to 60°C |
| 15. Warranty | 2 Years |
GR-4 Dual Scanner and Metal Detector Video Demonstration
Share Groundtech GR-4 Dual 3D Ground Scanner and Metal Detector
GR-4 Dual Scanner and Metal Detector FAQs
Can the Groundtech GR-4 Dual scan the ground without a phone, and what does the GR4 detector display?
Yes. The GR-4 Dual has a built-in colour display for field results, while the GR4 detector offers a separate metal-search mode. A phone is optional for G-Portal analysis.
What does pulse induction add to the Groundtech GR-4 Dual, and when should the GR4 detector mode be used?
The GR-4 Dual pulse-induction mode is designed for buried metal targets, including in mineralized or saline ground. Its GR4 detector and 3D scanner modes serve different survey tasks.
What depth does Groundtech list for GR-4 Dual ground scanning and for the GR4 detector mode?
Groundtech states up to 15 metres for GR-4 Dual 3D ground scanning and up to 3 metres for the GR4 detector system, depending on target size and soil. These figures are conditional, not guaranteed finds.
Can the Groundtech GR-4 Dual use a phone for analysis, and can the GR4 detector still work independently?
Yes. The GR-4 Dual can send scan data to G-Portal on Android or iOS for further 3D/4D analysis. The GR4 detector and on-device screen also support standalone field use.
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Technical Specifications
| SKU | Conrad-GR4-Dual |
|---|




