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Search coils

Search coils

What is a search coil

What is a search coil


The searchcoil is a vital part of your metal detector. It is the flat, typically circular disk, which generates a magnetic field and senses metallic targets in the surrounding environment. It is located at the end of the stem and is connected to the control housing via a cable normally wound around the stem. The size and depth of the magnetic field is determined by the shape and size of the searchcoil. Understanding the purposes behind the various sizes and shapes of searchcoils will empower you with the ability to choose the best searchcoil for each application.

SEARCHCOIL DEPTH

The detection depth of a searchcoil, as a rule-of-thumb, will be approximately equal to its diameter, for a coin-sized object. However, as a searchcoil’s size increases and its field pattern becomes larger, the field pattern becomes less concentrated and begins to miss small objects. For a coin-sized object, this effect becomes noticeable when using searchcoils larger than about 15” in diameter. Since the field generated by a large searchcoil is larger, deeper and less concentrated than a small searchcoil, it is the best choice when hunting for targets that are usually large and deeply buried, such as caches or relics.


References: www.garrett.com

Brand: DETECH Model: detech_15x8dd
Detech  15 x 8" DD  search coil for Minelab GPX, GP and SD metal detectorsThis is a classical 15 x 8 Elliptical coil now available in DD.Same operation as the 12.5" DD, with the Elliptical shape to allowing you access to tighter areas.Another option for older machines that require DD coils..
189.99€
Brand: DETECH Model: detech_15x12_gpx_sd
Detech 15x12 inch search coil ​SEF DD ​for Minelab GPX, GP and SD series detectorsDesigned to go deeper than standard coils. Lightweight Open style for speed-comfort-deeper finds! You can search a large area quite fast, due to the easy size and weight without losing any depth! Made to locate Gold an..
169.99€
Brand: DETECH Model: minelab_18x15_gpx_sd
Detech 18 x 15 inch SEF DD for Minelab GPX, GP and SD series detectorsWith free coil protectorLightweight open coil. Middle size to allow user to cover more ground in less time with less operator fatigue resulting in finding more gold. Very similar to the larger 21 x 17. Will go deeper and give bett..
209.99€
Brand: DETECH Model: 11 Mono Ultra Sensing
Detech 11 inch Ultra Sensing Monoloop search coil for Minelab GP,GPX,SD metal detectorsThis 100 % Waterproof, latest technology, Spiral wound mono coil, is the newest edition to the Detech mono range.It will amaze with its sensitivity to small Gold and relics at incredible depths! Stabilit..
167.99€
Brand: DETECH Model: detech_11"mono
Detech 11" Monoloop (closed design) search coil for Minelab GPX, GP & SD series11" MONO Solid design coil has proven to be a popular sized coil. One of the very best for stability and sensitivity for locating gold nuggets, not only in new undetected ground, but gold has been found in many a..
143.99€
Brand: DETECH Model: detech_11x6_mono
Detech 11x6'Monoloop (closed design) for Minelab GP, GPX & SD series11 x 6" Monoloop coil is extremely sensitive to smaller gold and still very stable over the ground. Ideally suited to cleaning up those previously worked patches. Better sensitivity, more accurate, able to locate both large and ..
144.99€
Brand: DETECH Model: 12.5 detech minelab GPX
Detech 12.5 inch discriminating search coil  for Minelab GPX, GP and SD series detectorsFree search coil12.5” DD solid design coil this is a classic coil.  Very stable, no false signals, able to work in difficult soils and locate smaller nuggets as well as larger deeper GOLD with this coi..
179.99€
Brand: DETECH Model: Detech12.5Monoloop
Detech 12.5 inch Monoloop search coil  for Minelab GPX, GP and SD Series12.5" MONO solid design coil has proven itself to be one of the very best search coils for locating gold nuggets, not only in new undetected ground, but gold has been found in many areas, previously detected and said to hav..
159.99€
Brand: DETECH Model: detech_12x10
Detech S.E.F. 12x10 for Teknetics Garrett, White's, Fisher, Teknetics, XP, Minelab, Tesoro, Detech,Golden MaskWith free coil protectorThe 12х10" S.E.F coil is designed to go deeper and offer better all around performance when compared to the other "DD" coils on the market today. Bette..
109.99€
Brand: DETECH Model: detech_13ultimate
Detech 13'Ultimate DD coil for:Garrett, White's, Fisher, Teknetics, XP, Minelab, Tesoro, DetechWith free coil protectorCOMPARED WITH THE CLASSIC DD COILS IT HAS THE FOLLOWING ADVANTAGES:     - RIBBED HOUSING, SPECIALLY DESIGNED FOR ABSORBING THE MECHANICAL SHOCKS AND VIBRATIONS, ..
119.99€
Brand: DETECH Model: detech_14_ultraMono
Detech 14″ Ultra Sensing Mono coil for Minelab GPX seriesNEW TECHNOLOGY - SPIRALLY WOUND COILS - PATENT OF DETECHSUPREME SENSITIVITY TO SMALL GOLD NUGGETS AND EXTREME DEPTH OFDETECTION FOR BIG TARGETSULTIMATE DESIGN. RIBBED HOUSING - MADE FROM ENFORCED POLYMER WITHMAXIMUM UV PROTECTIONWONDERFUL GROU..
274.99€
Brand: DETECH Model: detech_15x12ClosedMono
Detech 15x12" Mono for Minelab GP, GPX and SD metal detectorsThis closed design coil has been designed to go deeper than standard coils.  You can search a large area quite fast, due to the easy size and weight, without losing any depth!Made to locate Gold!  Very stable, no f..
188.99€
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