The Pulse Induction (PI) Metal Detector Sensor is a high‑performance sensing unit engineered for robust and accurate metal detection across a wide range of environments. Designed for both professional and hobbyist applications, this sensor features advanced detection capability, flexible calibration options, and multiple built‑in protection and signaling features.

Unlike conventional continuous‑wave detectors, this pulse induction sensor transmits short, high‑voltage pulses through a search coil, generating a magnetic field that collapses rapidly. When a metallic object is present, it induces eddy currents that produce a secondary magnetic field, which the sensor detects. This method provides excellent sensitivity, particularly in mineralized soils or saltwater conditions.

This metal sensor is suitable to search for small and medium metallic objects as tools, screwdrivers, metal cans and boxes with detection distances from ( 30-60cm ) depending on metal type and size.

The sensor outputs a simple digital signal (HIGH when metal is detected, LOW when not) that can be read directly by any microcontroller (5V Logic Level Output). It also includes an audible buzzer output and visual LED indicators for immediate feedback.

✨ Key Features - User‑adjustable Calibration Controls - Two potentiometers (Distance & Sensitivity) allow fine‑tuning of detection thresholds and support for multiple detection coil configurations. - Input Reverse Polarity Protection - Prevents damage to the sensor and external circuits from incorrect power supply polarity. - Output Short Circuit Protection - Safeguards the digital output driver circuit against accidental shorts, ensuring long‑term reliability. - Digital LED Indicators: Power LED: Indicates the sensor is correctly powered. Detection LED: Lights up upon successful detection of metallic objects. - Audible Buzzer Output: Provides a distinct audio alert when metal is detected, enhancing usability in low‑visibility or noisy environments, Enable/disable via onboard jumper. - Sensor Low Power Sleep Mode: A dedicated Enable input allows the sensor to be disabled (put into sleep mode) whenever ultra‑low power consumption is required – ideal for battery‑powered portable projects. - Compact and Durable Design - Optimized for integration into portable or embedded detection systems. - Flexible Coil Support: Designed for a default coil (1.1mH, 2.5Ω) but supports multiple customized coil parameters thanks to flexible calibration.

📦 Packaging Includes: ( Metal Detector - Single Channel Board - 1 Piece ) + ( 28cm(±2cm) Diameter Search Coil - 1 Piece )