A U.S. Army soldier uses a metal detector to search for weapons and ammunition in Iraq

Discover great deals on the many hard to find and one of a kind items available only on ebay!

Metal Detector

Metal detectors use electromagnetic induction to detect metal. more...

HomeHome
ComicsComics
ComputersComputers
ElectronicsElectronics
BlackberryBlackberry
BluetoothBluetooth
DVD PlayerDVD Player
GPSGPS
iPodiPod
Metal DetectorMetal Detector
mp3 Playermp3 Player
MoviesMovies
TelevisionTelevision
ToysToys
Video GamesVideo Games


In 1881, Alexander Graham Bell constructed a crude metal detector in an attempt to find an assassin's bullet in President James Garfield. Gerhard Fischar patented a portable version in 1931.

Upright "archway" detectors are used at entrances to secured buildings, such as courthouses or airports, to detect metallic weapons which may be brought in. Small portable "wand" detectors are used by security staff to frisk persons for the same. Larger portable metal detectors are used by treasure hunters to locate metallic items, such as jewelry or coins, buried shallowly underground.

There are three types of metal detectors: beat frequency oscillator, induction balance, and pulse induction.

  • In a beat frequency oscillator detector, a coil is used as an inductor in an oscillator, whose frequency changes when metal causes its inductance to change. Another oscillator produces a close frequency, and audible beats between them signal metal.
  • In an induction balance detector, there are two coils, usually gibbous with about 10% overlap, and a sine wave is transmitted with one coil and received with the other. The coils are adjusted so that there is no signal in the receive coil when there is no metal nearby.
  • In a pulse induction detector, a pulse is generated (usually by cutting off an inductor) and sent through a coil and the detector listens for echoes.

Metal detectors and archaeology

The use of metal detectors to search for archaeological finds is practised both by archaeologists and hobbyists. In some European countries including France and Sweden the use of a metal detector is forbidden by law, unless one has special permission. This is intended to protect archaeological sites but rarely means that illicit metal detecting ('nighthawking') does not take place and has the effect that new sites found by metal detector are never publicised or investigated fully. Instead they are slowly plundered for their metal items, disturbing the stratigraphy and forcing the artifacts on to the Black Market, never to be seen again. In the United Kingdom metal detecting is generally permitted provided certain criteria are met and efforts are made to record finds through the Portable Antiquities Scheme. The scheme has critics however, including some archaeologists and some metal detectorists themselves.

Countries with no restrictions or methods to deal with new finds in place are in danger of sites being regularly raided and their contents sold on without the information they provide ever being known. However, there are some responsible metal detectorists in unrestricted nations who contact archeologists when they find artifacts, and who never dig. They benefit archeology by finding artifacts for scientists.

Read more at Wikipedia.org


[List your site here Free!]

Profession
00006000
al Gold Metal Detector Waterproof Treasure Hunting Tools GiftsProfession 00006000 al Gold Metal Detector Waterproof Treasure Hunting Tools Gifts $28.99 Metal Detector Gp-Pointer Pin Pointer Probe Waterproof Pinpointer Tester Tool UsMetal Detector Gp-Pointer Pin Pointer Probe Waterproof Pinpointer Tester Tool Us $24.99
Waterproof Lcd Metal Detector Gold Digger Hunter Deep Sensitive w/Shovel Disc UsWaterproof Lcd Metal Detector Gold Digger Hunter Deep Sensitive w/Shovel Disc Us $57.99 New listing
		Lcd Metal Detector Deep Sensitive Gold Digger Hunter Waterproof Coil w/HeadphoneNew listing Lcd Metal Detector Deep Sensitive Gold Digger Hunter Waterproof Coil w/Headphone $61.99
New Md-3010Ii Metal Detector Gold Digger Deep Sensitive Light Hunter Lcd DisplayNew Md-3010Ii Metal Detector Gold Digger Deep Sensitive Light Hunter Lcd Display $53.39 Waterproof Lcd Metal Detector Gold Digger Deep Sensitive Light Hunter+ HeadphoneWaterproof Lcd Metal Detector Gold Digger Deep Sensitive Light Hunter+ Headphone $82.99 Was:  Previous Price $165.98
Metal Detector Gold Digger Deep Hunter Waterproof Underground SilverMetal Detector Gold Digger Deep Hunter Waterproof Underground Silver $53.41 Metal Detector Gold Digger Deep Sensitive Hunter Treasure Finder, Waterproof, UsMetal Detector Gold Digger Deep Sensitive Hunter Treasure Finder, Waterproof, Us $82.99
Md-3010Ii Metal Detector Gold Digger Hunter Deep Sensitive Search Lcd WaterproofMd-3010Ii Metal Detector Gold Digger Hunter Deep Sensitive Search Lcd Waterproof $53.38 Waterproof Metal Detector Deep Sensitive Search Gold Digger Hunter 6.5" Md-4030Waterproof Metal Detector Deep Sensitive Search Gold Digger Hunter 6.5" Md-4030 $38.99
Metal Detector Gp-Pointer Pro Pinpointer Probe Waterproof Sensitive Tester ToolMetal Detector Gp-Pointer Pro Pinpointer Probe Waterproof Sensitive Tester Tool $16.18 Was:  Previous Price $17.98 Bounty Hunter Snooper Ii Metal Detector 8" CoilBounty Hunter Snooper Ii Metal Detector 8" Coil $69.99
Bounty Hunter Qd2 Quick Draw Ii Metal Detector, Head Phones,Bag (Pre-Owned)Bounty Hunter Qd2 Quick Draw Ii Metal Detector, Head Phones,Bag (Pre-Owned) $99.00 Md-4030 Waterproof Metal Detector Deep Sensitive Search Coil Gold Digger HunterMd-4030 Waterproof Metal Detector Deep Sensitive Search Coil Gold Digger Hunter $46.89 Was:  Previous Price $49.88
Rm Ricomax Metal Detector for Adults - High-Accuracy Detector.Rm Ricomax Metal Detector for Adults - High-Accuracy Detector. $89.99 Was:  Previous Price $99.99 Yellow Lcd Metal Detector Deep Sensitive Waterproof for Gold Digger HunterYellow Lcd Metal Detector Deep Sensitive Waterproof for Gold Digger Hunter $55.98
Metal Detector Gold Digger Hunter Deep Sensitive Waterproof Coil with HeadphoneMetal Detector Gold Digger Hunter Deep Sensitive Waterproof Coil with Headphone $67.59 Md-4030 Metal Detector Gold Digger Light Hunter Deep Sensitive Search WaterproofMd-4030 Metal Detector Gold Digger Light Hunter Deep Sensitive Search Waterproof $12.50
Waterproof Lcd Metal Detector Gold Digger Deep Sensitive Hunter Search CoilWaterproof Lcd Metal Detector Gold Digger Deep Sensitive Hunter Search Coil $51.90 Metal Detector Gold Digger Deep Sensitive Waterproof Coil W/Shovel Two BatteriesMetal Detector Gold Digger Deep Sensitive Waterproof Coil W/Shovel Two Batteries $58.99
Lcd Metal Detector Waterproof Deep Sensitive Digger Hunter Search Coil 7"/11"Lcd Metal Detector Waterproof Deep Sensitive Digger Hunter Search Coil 7"/11" $51.90 to $179.90 Fisher 1235-X M-Scope Metal Detector W/case & Manual Works GreatFisher 1235-X M-Scope Metal Detector W/case & Manual Works Great $97.49 Was:  Previous Price $129.99
Whites Eagle programable metal detector Whites Eagle programable metal detector  $100.00 Garrett Pro Pointer Pinpointer Metal DetectorGarrett Pro Pointer Pinpointer Metal Detector $70.00
New listing
		Pi-King - 750 Underwater Pinpointer Metal DetectorNew listing Pi-King - 750 Underwater Pinpointer Metal Detector $34.00 Pro Metal Detector Underwater Waterproof Gold Digger Deep Sensitive w/HeadphonesPro Metal Detector Underwater Waterproof Gold Digger Deep Sensitive w/Headphones $82.99
Sm Pro Pi Metal Detector KitSm Pro Pi Metal Detector Kit $49.50 Waterproof Lcd Metal Detector Gold Digger Pinpointer Deep Sensitive Hunter CoilWaterproof Lcd Metal Detector Gold Digger Pinpointer Deep Sensitive Hunter Coil $57.99
Treasure Products - Vibra-Tector 750 Pulse Induction Handheld Metal DetectorTreasure Products - Vibra-Tector 750 Pulse Induction Handheld Metal Detector $85.59 Lcd Metal Detector Gold Digger Deep Sensitive Hunter Waterproof Coil+Shovel UsLcd Metal Detector Gold Digger Deep Sensitive Hunter Waterproof Coil+Shovel Us $58.99
Md-1008B Kids Lcd Metal Detector Child Finder Treasure Hunter Sensitive SearchMd-1008B Kids Lcd Metal Detector Child Finder Treasure Hunter Sensitive Search $23.99 Lcd Metal Detector Deep Sensitive Gold Digger Hunter Waterproof Coil w/HeadphoneLcd Metal Detector Deep Sensitive Gold Digger Hunter Waterproof Coil w/Headphone $62.90
Lcd Metal Detector Waterproof Treasure Hunter Gold Digger Metal Search+HeadphoneLcd Metal Detector Waterproof Treasure Hunter Gold Digger Metal Search+Headphone $88.99 Kkmoon Md4030 Metal Detector Gold Digger Hunter Deep Sensitive Search WaterproofKkmoon Md4030 Metal Detector Gold Digger Hunter Deep Sensitive Search Waterproof $46.59
Md-3010Ii Metal Detector Gold Digger Light Hunter Deep Sensitive Search LcdMd-3010Ii Metal Detector Gold Digger Light Hunter Deep Sensitive Search Lcd $36.00 Automatic Metal Detector Pro Pinpointer Gold Digger Sensitive Tester WaterproofAutomatic Metal Detector Pro Pinpointer Gold Digger Sensitive Tester Waterproof $17.98
Pro Underground Metal Detector High Sensitivity Kit Gold Hunter Waterproof CoilPro Underground Metal Detector High Sensitivity Kit Gold Hunter Waterproof Coil $57.99 Lcd Metal Detector Waterproof High Sensitive Search Gold Coin Digger PinpointerLcd Metal Detector Waterproof High Sensitive Search Gold Coin Digger Pinpointer $28.99 to $83.99
Underground Metal Detector Disc Gold Digger Hunter Finder Deep Sensitive ShovelUnderground Metal Detector Disc Gold Digger Hunter Finder Deep Sensitive Shovel $58.99 Bounty hunter gold digger metal detectorBounty hunter gold digger metal detector $32.00
Metal Detector Waterproof Gold Digger Hunter Finder Pinpointer Sensitive TesterMetal Detector Waterproof Gold Digger Hunter Finder Pinpointer Sensitive Tester $27.99 Was:  Previous Price $35.99 Amazing Working Preowned Whites Classic Iisl Metal Detector Coin Hunter Usa MadeAmazing Working Preowned Whites Classic Iisl Metal Detector Coin Hunter Usa Made $85.00
Waterproof Underground Metal Detector Gold Digger Deep Sensitive Hunter w/ShovelWaterproof Underground Metal Detector Gold Digger Deep Sensitive Hunter w/Shovel $58.99 Pi-Iking-750 Waterproof Metal Detector 30M Underwater Pinpointer Gold Hunter NewPi-Iking-750 Waterproof Metal Detector 30M Underwater Pinpointer Gold Hunter New $86.99 Was:  Previous Price $96.66
Lcd Metal Detector Md-3060 Gold Digger Deep Sensitive Hunter Waterproof SearchLcd Metal Detector Md-3060 Gold Digger Deep Sensitive Hunter Waterproof Search $51.90 Waterproof Metal Detector Advanced Kid's Gold Finder Treasure Hunter 3 ColorsWaterproof Metal Detector Advanced Kid's Gold Finder Treasure Hunter 3 Colors $29.59 Was:  Previous Price $44.16
Metal Detector Disc Pinpoint Waterproof Gold Digger Hunter Deep Sensitive ShovelMetal Detector Disc Pinpoint Waterproof Gold Digger Hunter Deep Sensitive Shovel $58.99 ForDoc Waterproof Metal Detector pinpointer - 2019 Fully Waterproof - OrangeForDoc Waterproof Metal Detector pinpointer - 2019 Fully Waterproof - Orange $19.95
Md-4030 Metal Detector Pro Edition Hobby Explorer Waterproof Search Coil 6.5" UsMd-4030 Metal Detector Pro Edition Hobby Explorer Waterproof Search Coil 6.5" Us $36.99 New listing
		Pro Underground Metal Detector w/Shovel, Waterproof Search Coil High SensitivityNew listing Pro Underground Metal Detector w/Shovel, Waterproof Search Coil High Sensitivity $69.99
Deep Sensitive Metal Detector Md-4060 Gold Hunter With Waterproof Search CoilDeep Sensitive Metal Detector Md-4060 Gold Hunter With Waterproof Search Coil $55.99 Fisher metal Detector F22Fisher metal Detector F22 $81.00
Md-4080 Metal Detector Gold Digger Deep Sensitive Light Hunter Lcd Display VlfMd-4080 Metal Detector Gold Digger Deep Sensitive Light Hunter Lcd Display Vlf $59.99 Lcd Metal Detector Kit Sensitive Search Treasure Hunter w/Shovel Waterproof CoilLcd Metal Detector Kit Sensitive Search Treasure Hunter w/Shovel Waterproof Coil $60.00
New Metal Detector Gold Digger Deep Sensitive Light Hunter Lcd DisplayNew Metal Detector Gold Digger Deep Sensitive Light Hunter Lcd Display $53.40 metal detector used radioshackmetal detector used radioshack $60.00
Md-3010Ii Lcd Metal Detector Waterproof Gold Digger Deep Sensitive Light HunterMd-3010Ii Lcd Metal Detector Waterproof Gold Digger Deep Sensitive Light Hunter $53.49 Was:  Previous Price $68.49 Lcd Pinpoint Metal Detector High Sensitivity outdoor Metal Detector Gold DiggerLcd Pinpoint Metal Detector High Sensitivity outdoor Metal Detector Gold Digger $67.59 Was:  Previous Price $75.10
Bounty Hunter Tracker Iv Metal DetectorBounty Hunter Tracker Iv Metal Detector $86.88 Trending at $98.59 Nokta Makro Pointer Waterproof Pinpointer Metal Detector with Holster, Case, BagNokta Makro Pointer Waterproof Pinpointer Metal Detector with Holster, Case, Bag $84.15
New listing
		Whites Classic Sl Metal Detector With Blue Max 800 CoilNew listing Whites Classic Sl Metal Detector With Blue Max 800 Coil $99.00 Tesoro Silver Sabre Plus Metal Detector with ExtrasTesoro Silver Sabre Plus Metal Detector with Extras $49.26
Minelab Go-Find 11 Metal Detector, 8" Waterproof Rectangle Coil, 7.8 kHz Freq.Minelab Go-Find 11 Metal Detector, 8" Waterproof Rectangle Coil, 7.8 kHz Freq. $99.00 List price:  Previous Price $129.00 Lcd Metal Detector Deep Sensitive Search Gold Digger Finder Hunter Md-5008Lcd Metal Detector Deep Sensitive Search Gold Digger Finder Hunter Md-5008 $90.99
allsun Hunter Gold Digger Metal Detector Waterproof Deep Sensitive Search Goldallsun Hunter Gold Digger Metal Detector Waterproof Deep Sensitive Search Gold $88.90 Was:  Previous Price $132.69 New listing
		Floureon Underground Metal Detector with Disc Gold Digger Finder Pinpoint ModesNew listing Floureon Underground Metal Detector with Disc Gold Digger Finder Pinpoint Modes $58.99
Waterproof Metal Detector Pro Pinpointer Sensitive Search Gold Hunter FinderWaterproof Metal Detector Pro Pinpointer Sensitive Search Gold Hunter Finder $14.49 Waterproof Metal Detector Deep Sensitive Search Gold Digger Hunter W/ BpWaterproof Metal Detector Deep Sensitive Search Gold Digger Hunter W/ Bp $30.99
Waterproof Metal Detector Deep Sensitive Search Gold Digger Hunter w/ HeadphoneWaterproof Metal Detector Deep Sensitive Search Gold Digger Hunter w/ Headphone $46.74 Was:  Previous Price $54.99 Professional Metal Detector Underground Search Gold Digger Hunter 8.3" Md-6200Professional Metal Detector Underground Search Gold Digger Hunter 8.3" Md-6200 $99.99
White's Electronics CoinMaster 4900D Professional Series Metal DetectorWhite's Electronics CoinMaster 4900D Professional Series Metal Detector $59.00 Bounty Hunter Metal Detector Junior Jr. 6.5" Coil Great for Kids Bhjs Ages 6 +Bounty Hunter Metal Detector Junior Jr. 6.5" Coil Great for Kids Bhjs Ages 6 + $45.08
Waterproof Lcd Metal Detector Kit Gold Digger Deep Sensitive Search Light HunterWaterproof Lcd Metal Detector Kit Gold Digger Deep Sensitive Search Light Hunter $67.59 Metal Detector Sand Scoop - Black Plastic Treasure Scoop For DetectingMetal Detector Sand Scoop - Black Plastic Treasure Scoop For Detecting $7.83
Waterproof Pinpoint Metal Detector Gold Digger Finder Deep Sensitive Hunting UsWaterproof Pinpoint Metal Detector Gold Digger Finder Deep Sensitive Hunting Us $58.99 Md-4080 Waterproof Metal Detector Gold Digger Deep Sensitive Hunter + Shovel UsMd-4080 Waterproof Metal Detector Gold Digger Deep Sensitive Hunter + Shovel Us $58.99
Waterproof Metal Detector Deep Sensitive Gold Hunter Jewelry Digger Coil SearchWaterproof Metal Detector Deep Sensitive Gold Hunter Jewelry Digger Coil Search $49.99 Gc-1028 Metal Detector Gold Digger Hunter Deep Sensitive Waterproof + HeadphoneGc-1028 Metal Detector Gold Digger Hunter Deep Sensitive Waterproof + Headphone $82.99
Waterproof Metal Detector Deep Sensitive Gold Digger Sand Deep Underwater HunterWaterproof Metal Detector Deep Sensitive Gold Digger Sand Deep Underwater Hunter $57.55 Deep Ground Sensitive Waterproof Metal Detector Md3010Ii Gold Finder Lcd DisplayDeep Ground Sensitive Waterproof Metal Detector Md3010Ii Gold Finder Lcd Display $54.99 Was:  Previous Price $109.98
Fisher GoldStrike Gold Strike metal detector head control unitFisher GoldStrike Gold Strike metal detector head control unit $88.00 New listing
		Fisher 11” Dd Coil For F11, F22, and F44 (Mint) Metal DetectorNew listing Fisher 11” Dd Coil For F11, F22, and F44 (Mint) Metal Detector $65.00
New listing
		Vintage White'S Coinmaster 6000/D Series 2 Metal Detector W/ Manual & Case "NiceNew listing Vintage White'S Coinmaster 6000/D Series 2 Metal Detector W/ Manual & Case "Nice $74.99 Metal Detector Underground Search Automatic Gold Hunter Digger Waterproof CoilMetal Detector Underground Search Automatic Gold Hunter Digger Waterproof Coil $67.59
Bounty Hunter Metal Detector Vlf2Bounty Hunter Metal Detector Vlf2 $58.99 Waterproof Pro Pointer Automatic Metal Detector Pinpointer Sensitive TesterWaterproof Pro Pointer Automatic Metal Detector Pinpointer Sensitive Tester $17.99
Nokta Pinpointer Waterproof Metal Detector At A Super Low Price ~ Pro ModelNokta Pinpointer Waterproof Metal Detector At A Super Low Price ~ Pro Model $84.15 Vintage Wilson Neuman Lnc Daytona Metal Detector W Trimm Dependable HeadphonesVintage Wilson Neuman Lnc Daytona Metal Detector W Trimm Dependable Headphones $5.50
New Kids Lcd Metal Detector Child Finder Treasure Hunter Sensitive Search UsNew Kids Lcd Metal Detector Child Finder Treasure Hunter Sensitive Search Us $23.99 Underground Metal Detector Waterproof Adjustable Length all Metal Detector BlackUnderground Metal Detector Waterproof Adjustable Length all Metal Detector Black $29.69
Metal Detector Gold Digger Hunter Underground Search Coil Waterproof Lcd DisplayMetal Detector Gold Digger Hunter Underground Search Coil Waterproof Lcd Display $82.99 Metal Detector Pro Pinpointer Gold Digger Hunter Sensitive Tester WaterproofMetal Detector Pro Pinpointer Gold Digger Hunter Sensitive Tester Waterproof $18.59 List price:  Previous Price $29.99
Portable Md-3010Ii Metal Detector for Gold Trasure Hunter Lcd Display YellowPortable Md-3010Ii Metal Detector for Gold Trasure Hunter Lcd Display Yellow $59.59 Bounty Hunter Tracker Iv Treasure Gold Hunter Discrimination Metal DetectorBounty Hunter Tracker Iv Treasure Gold Hunter Discrimination Metal Detector $69.99
Underground Metal Detector Gold Coil Digger Deep Sensitive Waterproof + ShovelUnderground Metal Detector Gold Coil Digger Deep Sensitive Waterproof + Shovel $58.99 Bounty Hunter Gold Digger 7" & 4" Coil Metal Detector + Carry CaseBounty Hunter Gold Digger 7" & 4" Coil Metal Detector + Carry Case $29.99
New listing
		Garrett Pro-Pointer Ii Pinpointing Metal DetectorNew listing Garrett Pro-Pointer Ii Pinpointing Metal Detector $50.00 New listing
		Oxkers Underground Metal Detector Searcher Digger Hunter With Adjustable StemNew listing Oxkers Underground Metal Detector Searcher Digger Hunter With Adjustable Stem $79.99
Digital Metal Detector Long Range Gold Treasure Digger Scanner Deep Sensitive UsDigital Metal Detector Long Range Gold Treasure Digger Scanner Deep Sensitive Us $67.00 Bounty Hunter Metal Detector Gold Digger 7" Closed Waterproof Coil LightweightBounty Hunter Metal Detector Gold Digger 7" Closed Waterproof Coil Lightweight $64.99
Click to see more Metal Detector items at www.ebay.com
Prices current as of last update, 10/11/19 11:44am.

Home Contact Resources Exchange Links ebay