Target Users
The Ajax Primero MD 15 is developed for users who require a genuinely professional solution rather than a typical consumer-level device. It is well suited for:

• Professional prospecting and survey teams

• Archaeological specialists and field researchers

• Companies involved in geological and exploration projects

• Experienced hobbyists aiming to advance to a professional standard

• Experts who depend on precise data and analysis prior to excavation

Primero MD-15 — a tool built for specialists and trusted by prospectors around the world.

 

Operating Environments
The device has been tested in real field conditions across a wide range of soil types and has demonstrated stable and reliable performance in:

• Dry and sandy desert environments

• Mountainous and rocky areas

• Agricultural fields and open plains

• Forested and humid regions

• Clay-based soils

• Highly mineralized soils with strong signal interference

• Archaeological and historical locations

Engineered for practical field use under real conditions, not for controlled laboratory settings.

Technical Architecture Driving High Performance

While the device incorporates 15 advanced search systems, its true strength comes from the scientific architecture that connects and organizes these systems into one unified structure:

 

Long-Range Detection Platform
Built on long-range frequency signal processing, this platform allows wide-area scanning and tracking of valuable targets over extended distances.

 

Ground Imaging Platform
Provides layered ground scanning with three-dimensional visual analysis, helping the user understand subsurface conditions before excavation begins.

 

EFM Platform – Advanced Audio Detection Systems
Concentrates on signal interpretation, metal differentiation, graphical readings, and fast, accurate target detection.

 

Geophysical Platform
Relies on analyzing soil characteristics and electrical resistivity to accurately locate metals, groundwater, and underground voids.

By integrating these platforms, the system delivers:

• Enhanced depth performance

• Clear distinction between precious and non-precious metals

• Stable operation in challenging soil conditions

• Comprehensive imaging and analytical visualization

• Dependable results that help minimize unnecessary digging

These platforms do not operate independently; they function as a single, integrated architecture that reinforces itself.

The Ajax Primero MD15 gold and metal detector is built around fifteen advanced search systems that together turn it into a powerful and flexible multi-system platform. This integrated design offers multiple search methods and simplifies the overall detection process, allowing users to reach their targets more efficiently and in less time.

 

1. Automatic Long-Range System

This system is ideal for users who prefer fast operation without complicated adjustments.

Operating principle:

Once the device is switched on, the system immediately begins searching for buried targets. It analyzes signals emitted by high-frequency metals, automatically detects the presence of a target, identifies its type, calculates the distance between the user and the target, and accurately guides the user toward it.

✔ Designed for quick and simple operation

✔ Fully automatic with no manual settings required

✔ Precise guidance and target positioning

Search Depth: up to 70 m

Search Distance: up to 3000 m

 

2. Manual Long-Range System

This system provides full manual control and is intended for professional users who require precise customization.

The user can manually set:

• Metal type (Gold – Silver – Copper – Iron)

• Desired detection depth

• Forward search distance

After configuration, the device transmits and receives signals while the user moves through the field. Target direction is indicated by device signals, which become clearer as the user approaches the target point.

✔ Complete control over search parameters
✔ Suitable for professional prospectors
✔ High accuracy in direction and target location

Search Depth: up to 70 m
Search Distance: up to 3000 m

 

3. Ionic Long-Range System

A specialized system designed to detect buried metals and treasures by analyzing the ionic field formed around metallic targets over long periods of time.

Main features:

• Detection depth up to 20 m

• Forward range up to 200 m

• Capable of detecting gold, silver, bronze, platinum, and copper

Its high sensitivity allows accurate detection of both small and large concentrations of precious metals.

 

4. Gradio Smart System

Developed for deep scanning with high accuracy, this system works to:

• Confirm targets at depths up to 10 m

• Analyze magnetic fields created around metals over time

• Detect metals and underground voids with high precision

Used for locating treasures, metals, and cavities.

 

5. Live Scan System

Provides real-time imaging of the scanned area with clear visual interpretation using color indicators:

• Green: soil characteristics

• Red: metals

• Blue: voids and caves

This system allows precise target localization, clear differentiation between object types, and live data visualization during scanning.

 

6. Ground Sonar System

A fast inspection system used before advanced scanning stages. It operates by:

• Emitting short, successive ground waves

• Analyzing reflected signals caused by density differences

• Detecting voids, tunnels, caves, and metals

It delivers immediate visual and audio feedback to support quick decision-making.

 

7. Ground Imaging System

One of the most advanced and accurate systems, designed for detailed subsurface analysis. Results can be viewed directly on the device screen or on the included tablet via the dedicated Primero MD software for professional data visualization and analysis.

The system is based on:

• Four high-sensitivity main sensors

• Generation of three-dimensional target images

• Detection depth up to 30 m

It provides precise information about target shape, true size, and exact location, helping the user make informed decisions before excavation.

 

8. Graph System

Displays target data in a two-dimensional graphical format to determine:

• Target beginning and end

• Size and density

• Approximate depth

Color indicators:

• Green: precious metals

• Red: non-precious metals

Used mainly to confirm targets after detection.

 

9. Discrimination System

Designed to:

• Distinguish between precious and non-precious metals

• Display metal type on the screen

• Enable iron rejection

Recommended during the target identification phase.

 

10. Pinpointer System

A high-precision system used in the final stage of detection, featuring:

• Accurate pinpointing of the target

• Gradual narrowing of the signal

• More precise estimation of depth and size

 

11. Quick Scan System

Allows rapid scanning with:

• Audio alerts when the coil passes over a target

• Color-based metal identification:

  • Red: non-precious

  • Black: precious

• Increased signal strength when approaching the target center

 

12. Spectrum Analyzer System

After a target is located, this system:

• Performs a two-dimensional scan

• Sends successive pulses over the target

• Accurately analyzes target type and depth

It operates when one of the dedicated coils is connected to the device.

 

13. Automatic Geophysical System

An advanced automatic system based on:

• Measuring differences in electrical resistivity

• Analyzing subsurface formations

• Differentiating between metals and groundwater

It provides fast and accurate results and is suitable for professional use without requiring advanced geophysical expertise.

 

14. Manual Geophysical System

Designed for specialists and professionals, offering:

• Two-electrode operation

• Reduced scan time

• High accuracy at selected points

• Full manual control over settings

Ideal for result confirmation or detailed examination of specific areas.

 

15. Imaging Geophysical System

Dedicated exclusively to groundwater detection, this system works by:

• Converting collected data into three-dimensional images

• Accurately locating water sources

• Identifying the optimal drilling point

It is a critical tool for well drilling, geological research, and advanced exploration projects.

Ground Imaging & Advanced Calibration System
The Primero MD15 is equipped with advanced ground imaging technologies supported by an intelligent calibration system and dedicated professional software. This setup enables accurate result interpretation either directly on the device screen or through the included tablet using Primero MD Software.

 

Ground Imaging Capabilities of Primero MD15
The device offers one of the most powerful layered subsurface imaging systems in its category. It relies on advanced analytical technologies to deliver a clear and precise representation of underground conditions.

Key capabilities include:

• Two-dimensional and three-dimensional ground imaging

• High-accuracy visualization of soil layers

• Clear differentiation between metals and cavities

• Color- and shape-based target display for easier understanding

• Pre-digging analysis of target size, shape, and depth

 

Intelligent Soil-Based Calibration
The system supports both automatic and manual calibration based on soil type, including:

• Clay soils

• Rocky terrains

• Sandy ground

• Mixed or highly mineralized soils

This calibration process works to:

• Correct measurement readings

• Minimize interference and false signals

• Significantly enhance detection accuracy

• Ensure realistic and reliable data output

As a result, the device maintains dependable performance even in challenging environments with strong mineral interference.

 

Result Interpretation & User Control
Users are able to:

• View results directly on the device display

• Or analyze data via the included tablet using Primero MD software

• Examine information through clear visual representations

• Review results carefully before making excavation decisions

The software interface is designed to deliver simple, precise, and professional interpretation of field data.

Ergonomic & Field-Ready Design
The Primero MD15 is engineered to deliver a balanced combination of durability and user comfort. Its construction features a strong yet lightweight body, optimized for extended field operation. The ergonomic design ensures a comfortable grip and well-distributed balance to help reduce user fatigue during long search sessions. The device also allows quick and easy assembly and disassembly, making transport and storage straightforward. Built with practical use in mind, it is always prepared for demanding real-world field conditions.

 

User Interface
The Primero MD15 user interface is developed with the same practical philosophy, focusing on efficient field operation. It complements the device’s lightweight and robust structure, supports comfortable long-term use, maintains balanced handling to minimize strain, and allows easy setup and breakdown. The overall interface design ensures smooth operation and readiness for continuous work in real field environments.

Technical specifications

Detection System	Multi-detection systems and functions, contains 15 optional systems
Operating Principle	Processing data and digital signals and converting them to visual and audible results
Processor Architecture	ARM Microcontroller 32 bit
Display Screen	TFT Color LCD, 800 x 480 WVGA, 16-bit color depth
Battery	12 volts, 3300 mAh
Power Rating	400 mA
Battery Endurance	Typical usage time 10 hours
Power Adapter	USB TYPE-C / PD / 1.5 A-30W
Storage	It can save to 50 scans.
Sound	High quality sounds, 32 KBIT/S, MP3
Notifications	Sound and tactile feedback configurable in the settings menu for
Bluetooth	2.4 GHz, sensitivity up to -80dBm.
Languages	Multilingual User Interface with support for 8 languages.
Date and Time	Real Time Clock could be set manually or Automatically via GPS time.
Login Restriction	Configurable PIN.
Overall Dimensions	88x52x20 cm
Package Total Weight	10.2 Kg
Operating temperature	From -10° C to 60° C (14° F - 140° F)
Storage temperature	From -10° C to 80° C (14° F - 176° F)
Humidity	Could be stored and operated at relative humidity level up to 90%.

Effective Exploration Across Different Environments
The Primero MD15 delivers reliable performance in a wide range of ground conditions, including desert areas, agricultural land, rocky terrain, and clay soils. Its advanced soil calibration system ensures stable operation even in highly mineralized environments with strong interference.

 

Ideal for Archaeological Applications
The device is well suited for archaeological research, with accurate detection of voids, tombs, and tunnels. Its layered imaging capabilities help users understand subsurface structures in advance, reducing unnecessary disturbance and minimizing potential damage to archaeological sites.

 

Reliable for Gold and Precious Metal Prospecting
Designed for serious prospecting, the system helps limit random digging through advanced metal discrimination and long-range directional search systems. These features allow users to identify and approach targets more efficiently before excavation.

 

An Excellent Option for Ambitious Hobbyists
With a simple and intuitive interface, ready-to-use advanced systems, and clear result presentation, the Primero MD15 delivers dependable performance even for users with moderate field experience. It enables faster searches with less effort while maintaining high accuracy.