Velleman K7102 Metal Detector Electronics Kit

LED - Light Emitting Diode - a small light source

Electric - A general term for the flow of electric charge

water - A chemical substance. Chemical formula H2O.

Cable - A series of wires bonded to form a single thread

Wall - A physical barrier between two areas

Audio - Also known as sound. An audible vibration wave which can be heard.

LED - Light Emitting Diode. A bulb that is very efficient at producing light. Often small.

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