MDS-60 Metal Detector Kit for Beginners

Technical Specifications

• Operating Voltage: 3V to 5V DC (typically powered by two AA batteries or a lithium cell).
• Operating Current: ~40mA (when metal is detected).
• Standby Current: ~5mA.
• Detection Range: 60mm (6cm) or less, depending on the size and type of the metal object.
• Alarm Mode: Dual feedback consisting of a piezo buzzer and a red LED indicator.
• PCB Dimensions: Approximately 61mm x 86mm.
• Circuit Type: Simple oscillator and amplifier circuit.

Key Features

• Adjustable Sensitivity: The kit includes a potentiometer that allows you to fine-tune the detection threshold.
• Compact Design: The search coil is integrated directly into the PCB traces, meaning you do not have to wind your own copper wire.
• Educational Value: It demonstrates how magnetic fields interact with metallic objects to trigger an electronic signal.

What’s Included in the Kit

• PCB: A high-quality fiberglass board with the induction coil etched on one side.
• Transistors: Typically 9012, 9013, or 9018 NPN/PNP types.
• Passive Components: Various resistors and electrolytic capacitors.
• Feedback: 1x Active Buzzer and 1x 5mm LED.
• Control: 1x 100-ohm Potentiometer.
• Power: Battery connector or box (depending on the specific supplier).

This kit is ideal for hobbyists who want to understand the basic mechanics of how a pulse or oscillator-based detector works before moving on to more complex circuitry or professional-grade equipment.