4 – Pulse Induction System (PI)

The Pulse Induction system in the Concord Metal Detector from Mega Detection is specially engineered to provide deep and stable detection for both ferrous metals (such as iron) and non-ferrous metals (such as gold, silver, and copper).

This system operates with the powerful PS50 Double-D search coil (50 cm diameter), which allows the device to locate coins, gold jewelry (rings, bracelets), and even larger metal objects at depths of approximately 2 to 3 meters under suitable ground conditions.

Detected signals are shown on the screen as a curved, color-changing graph. By analyzing the color transitions and the audio response, the user can clearly distinguish between ferrous and non-ferrous targets.

Pulse Induction Adjustable Options

Ground Balance
This function calibrates the detector to match the soil conditions of the search area.
The user simply presses OK while holding the PS50 coil parallel to the ground until calibration is complete.
Ground balancing is essential before starting any search for best depth and stability.

Threshold
Controls the sensitivity of audio signals.
Low levels allow the user to hear even very weak signals from tiny targets, while higher levels help ignore small noise and focus on stronger, deeper targets.
Adjustable from 1 to 6.

Gain
Controls the volume of deep target signals.
Higher values amplify signals coming from deeper objects.
Adjustable from 1 to 6.

Sound (Tone)
Changes the audio tone style.
Different tones also affect how the visual signal curve appears on the screen, giving the user another way to interpret targets.

On the results screen, a dynamic color curve changes shape and color as the coil passes over a target.
At the bottom of the screen, two indicator lights show whether the target is ferrous or non-ferrous.

5 – Smart Detect System

The Smart Detect system is a highly sensitive acoustic detection technology that works with the PS36 and PS28 search coils.
It is specially designed to detect small metal objects such as tiny gold nuggets and coins at shallow depths, with excellent accuracy and discrimination.

This system uses advanced target-analysis technology to ensure reliable performance in all types of soil and terrain, and allows easy switching between detection modes depending on the target size and search purpose.

Mode 1 – PS36 Search Coil

This mode uses the PS36 oval search coil (36 cm).
Once installed, the device displays a control screen where the following options can be adjusted:

Calibration

Allows the user to calibrate the coil before searching to achieve maximum accuracy and stability.

Detection Modes

1. All Metal
Detects both ferrous and non-ferrous metals.

2. Non-Ferrous
Filters signals to detect only gold, silver, copper, and other non-ferrous metals, ignoring iron.

3. Ferrous
Detects iron and ferrous metals only, ignoring gold and other non-ferrous targets.

Sound

Enables or mutes the internal speaker.
This is useful when the user wants to rely only on the visual target ID without audio, especially in noisy environments.

Digital Target ID System

In the center of the screen, a circular digital Target ID displays a number that represents the detected metal type (for example, a specific number for gold).

On both sides of the circle are two semi-circular bar indicators that light up according to signal strength and selected detection mode:

• All Metal Mode

  • Non-ferrous targets (gold, etc.) activate the left indicator (yellow → red).

  • Ferrous targets activate the right indicator (green → blue).

• Non-Ferrous Mode
  Both indicators light up together in yellow → red tones depending on signal strength.

• Ferrous Mode
  Both indicators light up in green → blue tones, reflecting the strength of ferrous signals.

These two systems make the Concord extremely powerful, combining deep detection, precise discrimination, and intelligent audio-visual analysis for professional treasure hunting and gold prospecting.

Acoustic Threshold

This option allows precise control over the audio threshold of received signals.
The user adjusts it using a vertical scale from 1 to 6.
Higher values make the detector more sensitive to very weak signals, such as those coming from tiny gold nuggets, while lower values help focus on stronger signals from larger targets.

Mode 2 – PS28 Search Coil

This mode uses the PS28 search coil (28 cm diameter), designed for detecting small and shallow metal targets with high precision.

When activated, the system displays two vertical indicators on both sides of the screen, along with digital and graphical indicators in the center.

PS28 Screen Indicators

Sensitivity
Located on the left side, this control allows the user to choose from 9 sensitivity levels.
Higher values increase the ability to detect very small targets, while lower values are better for ignoring minor interference.

Threshold
Displayed on the right side, this vertical scale controls the audio threshold with 9 selectable levels.
Higher values make it easier to hear small and weak signals, while lower values focus on larger, stronger targets.

Graphical Signal Indicator
In the center of the screen, the detector shows:

• Digital Target ID number

• FE / NON-FE indicators (Ferrous or Non-Ferrous)

• A visual signal graphic made of concentric circles that light up according to signal strength

The stronger the detected signal, the more circles illuminate, giving a clear visual clue about the target.

Multi-Channel Display of Search Results

The Concord provides a fully integrated results display system, giving the prospector clear and detailed information about detected targets through visual and audio feedback.

High-Resolution LCD Screen

The main unit is equipped with a large, high-definition color LCD, ensuring excellent visibility when adjusting settings or viewing results.
It displays numbers, charts, and graphics that clearly represent detection data.

Depending on the selected search system, the screen can show:

• Direction and target reports in LRL systems

• 2D scan views in imaging systems

• Digital and color-coded graphs in Pulse Induction and Smart Detect modes

This allows the user to understand both the location and nature of the target quickly and accurately.

Built-in Speaker

All search systems provide audio feedback through the internal speaker.
Different tones and sound intensities help the user understand signal strength, target type, and proximity.

For example, in live detection modes, the tone changes according to the type of metal, and the volume increases as the user moves closer to the target.

Easy-to-Use Multilingual Software

The Concord software is designed with a modern graphical user interface, combining:

• Clear text

• Intuitive icons

• Harmonious colors

• Smooth animations

It allows both beginners and professionals to easily adjust:

• Search systems and programs

• Depth and distance (LRL modes)

• Detection modes (Pulse Induction & Smart Detect)

The program also displays results using graphs, indicators, and charts, along with interactive sound feedback when navigating menus.

To support prospectors worldwide, the software is available in 12 international languages, including English, French, Chinese, and more.

External Rechargeable Battery

The device is powered by a 12-volt Lithium-Ion Polymer battery, housed in a separate external battery box with its own power switch.

The battery provides long operating time, depending on:

• The selected search system

• The search tools used

• Power-saving settings within the software

This ensures reliable field performance during long search sessions.

Concord Metal Detector – Package Contents

The Concord Metal Detector package includes a complete set of professional components, carefully arranged to ensure maximum performance and ease of use:

• Main Control Unit (System Box)

• Intelligent Multi Transceiver Unit (I.M.T.U)

• Connector Base

• Adjustable Armrest and Shaft Set

• Long-Range Detection Antennas

• Rechargeable Lithium-Ion Battery

• Wired Headphones

• Accessories Kit
  (mounting screws, nuts, battery charger, connection cables, and related items)

• User Instruction Manual

This comprehensive package allows the user to start searching immediately with all required tools included.