Description
3D Ground Scanner + Pulse Induction Metal Detector
The A2 GEO works as:
- A professional 3D ground scanner
- A pulse induction metal detector (1 kHz frequency)
- A geo-electric underground mapping system
It uses MFS-3 Dual Sensor Technology (Gradiometer ±3000 µT) to scan the ground accurately and deliver stable results even in mineralised soil.
If you’re searching for the most capable machine professionals trust for deeper scanning and structured underground analysis, this model fits that category.
Geo-Electric System for Deep Structural Detection
The integrated resistivity system operates at:
- 100V – 66mA output
- 62 Hz frequency
- 50 sample interval
It allows quick scanning across four lines with:
- Automatic resistivity scanning
- Manual resistivity scanning
The collected data can then be analysed in 3D using the G-Portal mobile application.
This feature is especially valuable for users involved in:
- Archaeological exploration
- Cave and void detection
- Structural underground research
- Water source exploration
Deep Scanning Capability
The 3D scanning system can reach depths of up to 20 meters (depending on soil structure and target size).
Scanning modes include:
- 3D Ground Scanning
- Live Scanning
- Pinpointer
- Detector Quick Scan
- Detector Advanced Scan
- 3D Detector Scanning
- Resistivity Automatic Scanning
- Resistivity Manual Scanning
This flexibility makes it suitable for both experienced professionals and advanced hobbyists involved in serious metal detecting projects.
Smart 3D Analysis via Mobile App
All scan data can be transferred via Bluetooth 4.2 BLE to the G-Portal Android & iOS application
The app allows:
- 3D underground visualisation
- Layer analysis
- Target shape identification
- Depth estimation
The device supports:
- 11 languages on the device
- 25 languages on the mobile app
This makes it a practical choice for international users who want clarity and control.
Battery & Build Quality
- 3.7V Li-ion rechargeable battery
- Approx. 6 hours (Pulse Induction mode)
- Approx. 10 hours (other systems)
- Type-C 25W fast charging
- Operating temperature: 0°C – 70°C
- Storage conditions: -20°C to 60°C
- 2-year warranty
The unit is designed for real field conditions, offering durability without unnecessary complexity.
Who Should Buy the A2 GEO?
This is not an entry-level machine.
It is ideal for:
- Professional treasure hunters
- Archaeological explorers
- Advanced users in the metal detecting shop market
- Buyers looking to buy metal detector models with deep scanning capability
- Users searching for a reliable gold detector UK with structural mapping support
If you simply want to detect surface coins, this may be more than you need. If you want structured underground analysis, this is where the A2 GEO stands out.
A2 GEO Questions, Answered
How much is the A2 GEO?
£3,750. You are buying three instruments in one: a 3D ground scanner, a pulse induction detector and a geo-electric resistivity system. Bought separately that is considerably more.
What does the geo-electric system add?
Resistivity measurement, which is how you find underground tunnels, voids and water rather than metal. It runs at 100V and 66mA output, 62Hz, with a 50 sample interval, scanning four lines either automatically or manually.
What is the difference between this and the standard A2?
The standard A2 gives you the 3D scanning and pulse induction. The GEO adds the resistivity system. If you are looking for structures and water as well as metal, that is the whole reason to choose this version.
How deep does the 3D scanning reach?
Up to 20 metres, depending on soil structure and target size. The MFS-3 dual sensor gradiometer runs at plus or minus 3,000 microtesla, which is a wider range than most gradiometer scanners in this bracket.
What are the scanning modes?
3D Ground Scanning, Live Scanning, Pinpointer Detector, Quick Scan Detector, Advanced Scan 3D, Detector Scanning, and resistivity scanning both automatic and manual. Eight modes across the three technologies.
What frequency does the pulse induction side run at?
1kHz. A low frequency pulse instrument is the right choice for depth on larger targets in mineralised ground, which is exactly where a conventional detector struggles.
How do I read the results?
Collected data is analysed in 3D through the G-Portal mobile application. Doing the analysis on a phone rather than needing a laptop in the field is a practical advantage on a remote site.
Who is it for?
Archaeological exploration, cave and void detection, structural research and water source exploration, as well as conventional deep metal detecting. If you only want metal, our ground detectors page has cheaper options.









