HOBBY USE- From where and what you can hunt to how to dig a target without damaging it, there's a lot to know to about treasure hunting with today's high performance metal detectors. Hobbyists want quality at a great price with great customer service and that is what John's Detectors offers.
PROFESSIONAL USE - Private Investigators, Bounty Hunters, Police Officers, and Security Forces purchase through John's Detectors for the best in quality and customer service.
CALL JOHN - We encourage first time buyers or hobbyists to please call us before you purchase so we can assess your needs. Although we offer online purchasing, many first time buyers will "over-purchase". We want you to get a good deal at the best price for you!
(325) 282-2329
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Metal-detector
technology is a part of our everyday lives. It spans
from leisure to work to safety. We encounter metal
detectors in airports, office buildings, schools,
government agencies and prisons to ensure that no
one is bringing a weapon onto the premises.
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Metal detectors provide
millions of people around the world with an opportunity
to discover hidden treasures, items buried and lost, or
artifacts.
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How a Metal Detector Works: Metal detectors all pretty much work the same. All metal detectors are variations on the same theme, which is electromagnetic . When you put electricity into a coil of wire, a magnetic field is created, and any piece of metal within the near vicinity of that magnetic field also starts to radiate its own magnetic field. That magnetic field will hang around for a microsecond or two, even when the electricity to the coil is switched off. A second coil can be tuned to detect that tiny magnetic field. The electronics in a metal detector converts battery power into a signal of a certain frequency, or in the case of a multi frequency machine, several frequencies. These signals are radiated from the transmit coil in the search-head and metal objects within range of the signal transmission will be magnetised in the way described above. A second receive coil fitted in the search-head next to the transmit coil is 'listening' for the residual signals coming from metal objects in the ground.
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