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Metal detectors work by transmitting an electromagnetic field from the search coil into the ground. Any metal objects (targets) within the electromagnetic field will become energized and retransmit an electromagnetic field of their own. It is important to keep the detector moving.
A battery of the metal detector activates the transmitter circuit that passes electricity down through a cable in the handle to the transmitter coil. When you sweep the detector above a metal object, the magnetic field penetrates right through it and the magnetic field makes an electric current flow inside the metal object.
This flowing electric current creates another magnetic field all around the object. The magnetic field cuts through the receiver coil. The magnetic field makes electricity flow around the receiver coil and up into the receiver circuit, making a loudspeaker beeps and alerting you you've found something.
DETECH EDS GOLD Catcher 28kHz VLF Metal Detector With 3 coils  6” and 10” closed design  coils and 12x12"SEF Pro coil
New Hot
Brand: DETECH Model: D00155-3 coils
TECHNOLOGY AND SPECIFICATIONS: Type: Very Low Frequency (VLF) Metal Detector, Technology: Extreme Depth and Sensitivity (EDS) Operating Frequency: 28 kHz. Available coils: DD 6 x 6″ (15 cm), DD 10×10″ (25 cm) & 12x12"SEF Pro coil for DETECH EDS GOLD Catcher 28kHz VLF. Weight: 1.6 kg wi..
£776.20 Ex Tax:£776.20
DETECH EDS GOLD Catcher 28kHz VLF Metal Detector With 6” and 10” Closed Design Search Coils
New
Brand: DETECH Model: D00155
 TECHNOLOGY AND SPECIFICATIONS: Type: Very Low Frequency (VLF) Metal Detector, Technology: Extreme Depth and Sensitivity (EDS) Operating Frequency: 28 kHz. Available coils: DD 6 x 6″ (15 cm), DD 10×10″ (25 cm) for DETECH EDS GOLD Catcher 28kHz VLF. Weight: 1.6 kg with batteries...
£653.60 Ex Tax:£653.60
DETECH Relic Striker 4.8 kHz VLF Metal Detector With 18x15” SEF and 13" Ultimate coils
New
Brand: DETECH Model: D00159-D00020
TECHNOLOGY AND SPECIFICATIONS: Type: Very Low Frequency (VLF) Metal Detector, Technology: Extreme Depth and Sensitivity (EDS) Operating Frequency: 4.8 kHz. Available coils: 18x15” SEF and 13" Ultimate coils for DETECH Relic Striker. Weight: 1.6 kg with batteries.FEATURES: Search Systems VLF Motion a..
£952.08 Ex Tax:£952.08
Brand: DETECH Model: D00159
DETECH Relic Striker 4.8 kHz VLF Metal Detector With 18x15” SEF coil, rechargeable battery system, with a deluxe cartoon box Included  TECHNOLOGY AND SPECIFICATIONS: Type: Very Low Frequency (VLF) Metal Detector, Technology: Extreme Depth and Sensiti..
£817.73 Ex Tax:£817.73
Brand: DETECH Model: D00160
 TECHNOLOGY AND SPECIFICATIONS: Type: Very Low Frequency (VLF) Metal Detector, Technology: Extreme Depth and Sensitivity (EDS) Operating Frequency: 14 kHz. Available coils: 9" Ultimate coil for CHASER. Weight: 1.5 kg with batteri..
£555.12 Ex Tax:£555.12
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