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The utilization of Metal Detector can be noticed in airports, railway stations, public areas, offices and in various other places for security purpose. The working system of this equipment depends on electromagnetic induction principle. This advanced security system is equipped with necessary parts like control box where its microprocessor, speaker and circuit are located; search coil and shaft. Its signal mode gets activated as soon as it detects presence of metal in a targeted area via the flow of electronic current in its transmit coil. The in built microprocessor of this security system is instrumental in performing arithmetical, logical and program controlling activities with high speed.