Conrad GR 3 Plus 3D Ground Scanner
The Conrad GR 3 Plus is a professional 3D imaging ground scanner designed for users who want a clearer view of what may be hidden underground before digging. It helps detect buried metals, magnetic objects, underground cavities, tunnels, rooms, graves and hidden structures through advanced 3D ground scan technology.
With its compact design, wireless connection and mobile analysis app, the Conrad GR 3 Plus gives treasure hunters and professional users a practical way to scan the ground, view results in real time and analyze underground targets with better confidence.
What Is the Conrad GR 3 Plus?
The Conrad GR 3 Plus is an underground imaging device from Groundtech. It is designed to scan differences beneath the soil and display them visually through a 3D analysis application on a smartphone or tablet.
Unlike traditional detectors that mainly depend on audio signals, the Conrad GR 3 Plus gives the user graphical and numerical scan results. This makes it useful for locating buried metals, gold, copper, silver, iron, magnetic objects and underground voids such as tunnels, rooms and cavities.
The GR 3 Plus version uses CN-D Dual Sensor Technology, giving it stronger sensitivity and better scan resolution compared with the standard GR 3 model.
Why Choose the Conrad GR 3 Plus?
The Conrad GR 3 Plus is a strong choice for buyers who want professional 3D ground imaging without choosing a heavy or complicated system.
It combines dual sensor technology, wireless operation, real-time mobile analysis and lightweight field performance in one device. For gold prospectors, treasure hunters and users who need underground cavity detection, the GR 3 Plus offers excellent value for money.
If you are looking for a compact 3D ground scanner for professional field use, the Conrad GR 3 Plus is one of the most practical choices in its category.
How the Conrad GR 3 Plus Works
The Conrad GR 3 Plus works as a 3D ground scanner using CN-D Dual Sensor Technology with gradiometer-based detection. During scanning, the device collects underground signal changes and transfers the data wirelessly to the mobile app.
The app then displays the scan results visually, helping the user analyze the position, shape, depth and type of underground anomaly. This gives a clearer view of what may be hidden below the surface before excavation.
Conrad GR 3 Plus Scan Functions
The 3D Ground Scan function is used to scan the search area and create a visual underground image. It helps detect and analyze buried metals, cavities, tunnels, rooms, graves and other underground structures.
The Live Scan function gives a faster graphical response while moving across the ground. It is useful for checking signal changes quickly without following a strict scan pattern.
The Pinpointer function helps narrow down the exact position of the detected target after scanning. This makes excavation planning easier and more accurate.
Conrad GR 3 Plus Main Applications
The Conrad GR 3 Plus can be used for:
- Gold prospecting
- Treasure hunting
- Buried metal detection
- Underground cavity detection
- Tunnel and room detection
- Grave and historical site exploration
- Archaeological field research
- Geological and subsurface analysis
- Professional underground scanning
- Advanced hobby treasure hunting
Conrad GR 3 Plus Key Features
- Professional 3D underground imaging system
- CN-D Dual Sensor Technology
- Detects buried metals and underground cavities
- Suitable for gold, silver, copper, iron and magnetic objects
- 3D Ground Scan, Live Scan and Pinpointer functions
- Wireless Bluetooth connection
- Android and iOS mobile app support
- Real-time scan data display
- Graphical and numerical result analysis
- Compact and lightweight design
- No heavy external battery required
- Rechargeable lithium-ion battery
- Up to 8 hours operating time
- Depth capability up to 15 meters depending on soil and target size
- Suitable for sandy, rocky and clay soil conditions
- Easy to use for beginners and practical for professionals
Conrad GR 3 Plus Technical Specifications
| Feature | Specification |
|---|---|
| Brand | Groundtech |
| Model | Conrad GR 3 Plus |
| System | 3D Ground Scanner |
| Sensor Technology | CN-D Dual Sensor Technology, Gradiometer ± 2000 µT |
| Processor | 240 MHz CPU |
| A/D Converter | 12-bit |
| Maximum Depth | Up to 15 meters depending on soil and target size |
| Scan Modes | Automatic 3D Scan, Manual 3D Scan, Live Scan, Pinpointer |
| Mobile App | Conrad GR-3 Android & iOS Analysis App |
| Wireless Connection | Bluetooth 4.2 BLE |
| Battery | 3.7 V rechargeable Li-ion battery |
| Operating Time | Approximately 8 hours |
| Charging Input | 5V – 2A |
| Operating Temperature | 0°C to 70°C |
| Storage Temperature | -20°C to 60°C |
| Weight | Approximately 600 g |
| Dimensions | 810 × 70 × 70 mm |
| Warranty | 2 years |
Conrad GR 3 Plus Compared with Groundtech GR-4 and GR-4 Dual
| Comparison Point | Conrad GR 3 Plus | Groundtech GR-4 | Groundtech GR-4 Dual |
|---|---|---|---|
| Device Type | 3D imaging ground scanner | 3D ground scanner | 3D ground scanner + integrated PI metal detector |
| Best For | Gold prospecting, buried metals, cavities and underground analysis | Deeper 3D ground scanning and professional underground analysis | 3D scanning plus direct metal detection with PI coil |
| Sensor Technology | CN-D Dual Sensor Technology | MFS-2 Dual Sensor Technology | MFS-2 Dual Sensor Technology |
| Detector Coil | Not included | Not included | Included PI search coil |
| PI Technology | No | No | Yes, Pulse Induction technology |
| 3D Scanning Depth | Up to 15 meters | Up to 15 meters | Up to 15 meters |
| PI Detection Depth | Not available | Not available | Up to 3 meters |
| Scan Modes | 3D Scan, Live Scan, Pinpointer | 3D Ground Scan, Live Scan, Pinpointer | 3D Ground Scan, Live Scan, Pinpointer, Detector Fast Scan, Detector Advanced Scan |
| Mobile App | Conrad GR-3 App | G-Portal App | G-Portal App |
| Android / iOS Support | Yes | Yes | Yes |
| Wireless Connection | Bluetooth 4.2 BLE | Bluetooth 4.2 BLE | Bluetooth 4.2 BLE |
| Operating Time | Up to 8 hours | Around 10 hours in 3D mode | Around 10 hours in 3D mode, around 6 hours in PI mode |
| Main Advantage | Compact, simple and practical 3D imaging | Stronger depth capability and newer analysis system | Combines 3D imaging and PI metal detection in one device |
| Recommended Buyer | Users who want a lightweight 3D imaging scanner at a better price | Users who want deeper professional 3D scanning | Users who want both underground imaging and direct metal search |
Which Groundtech Device Should You Choose?
Choose the Conrad GR 3 Plus if you want a compact, lightweight and practical 3D imaging ground scanner for gold prospecting, buried metals, cavities and underground target analysis.
Choose the Groundtech GR-4 if you want a newer 3D ground scanner with deeper scanning capability and advanced G-Portal analysis.
Choose the Groundtech GR-4 Dual if you want the most versatile option, because it combines 3D ground scanning with Pulse Induction metal detection using a search coil.
Conrad GR 3 Plus vs Groundtech GR-4
The Conrad GR 3 Plus is the best choice for users who want professional 3D imaging at a better price. It is practical, lightweight and suitable for many search conditions.
The Groundtech GR-4 is better for users who need deeper 3D scanning and more advanced field analysis.
Conrad GR 3 Plus vs Groundtech GR-4 Dual
The Groundtech GR-4 Dual is better for users who want both ground imaging and direct PI metal detection in one device.
While the Conrad GR 3 Plus focuses on compact 3D imaging and underground analysis, the GR-4 Dual adds a PI search coil for direct metal detection.
Conrad GR 3 Plus Package Contents
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Conrad GR 3 Plus Maximum Depth
The maximum depth of the Conrad GR 3 Plus can reach up to 15 meters. Actual depth depends on soil type, mineralization, target size, target shape and field conditions. Larger targets can usually be detected deeper than smaller objects.
Difference Between Conrad GR 3 Plus and Groundtech GR-4
The Conrad GR 3 Plus is a compact 3D imaging ground scanner with up to 7 meters depth capability, while the Groundtech GR-4 is a newer and deeper 3D ground scanner with up to 15 meters 3D scanning depth.
Difference Between Groundtech GR-4 and GR-4 Dual
The Groundtech GR-4 is a 3D ground scanner. The Groundtech GR-4 Dual includes the same 3D scanning concept but adds an integrated Pulse Induction metal detector system with a PI search coil.
Why Buy the Conrad GR 3 Plus from ETG GmbH?
Buying the Conrad GR 3 Plus from European Technology Group ETG GmbH gives you more than just a device. You get professional guidance, clear product information and support from a specialized company in Germany.
ETG GmbH helps customers choose the right detector according to their search goals, soil conditions and experience level. Whether you are searching for gold, buried metals, cavities or underground structures, the team can guide you toward the correct solution before purchase.
Final Recommendation for Conrad GR 3 Plus
If you want a professional 3D imaging ground scanner with strong value, simple operation and practical field performance, the Conrad GR 3 Plus is a smart choice.
It is compact, lightweight and suitable for many search conditions. For users who need a practical device for gold prospecting, buried metal detection, cavity detection and underground analysis, the Conrad GR 3 Plus offers a strong balance between performance, ease of use and value.
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