N.B .: FOR THIS PRODUCT ASK FOR AVAILABILITY In this book there is space for the technician and for the quest for the metal detector.It contains the basic notions about magnetism and physics and chemistry of metals, the operation of the metaldetector, but also useful information on how and where to practice this hobby. Some of the topics covered: metals, magnetism and electromagnetism, principles of operation, detection, typologies, research issues, legislation, glossaries, uses, etc.