?? ???? ?? ?????? ???? ????? ??????? ???? ??? ????? ???????? ?? ?? 20 ??? ??? ???? ??? ????? ???????? ?? ?? 20 ??? ?? ???? ????? ??? ????? ???????? ???? ?????? ???? ?? ?? ?????? ????????? ??????? ?? ???? ??????????? ????????. ????? ??? ?????? ?????? ??????? ??? ????? ??????? ?

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The Basics of a Metal Detector Metal detectors are electrical devices that utilize electromagnetic waves sent from a magnetic transmitter to scan the ground, hoping to encounter metallic objects buried underground and create their own electromagnetic fields, which the receiver coil detects as ele