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!]

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 $38.69 Was:  Previous Price $48.36 New Md6250 Metal Detector Gold Digger Deep Sensitive Light Hunter Lcd DisplayNew Md6250 Metal Detector Gold Digger Deep Sensitive Light Hunter Lcd Display $68.49
Garrett Pro Pointer Ii Metal Detector 1-3 Days Delivery Fast Free ShippingGarrett Pro Pointer Ii Metal Detector 1-3 Days Delivery Fast Free Shipping $95.80 Canway Metal Detector High Accuracy Adjustable Waterproof Metal FinderCanway Metal Detector High Accuracy Adjustable Waterproof Metal Finder $49.45 Was:  Previous Price $54.95
Pinpointing Metal Detector Gp-pointer Pro Static State gold Hunting Ip66Pinpointing Metal Detector Gp-pointer Pro Static State gold Hunting Ip66 $16.14 Was:  Previous Price $16.99 Waterproof Metal Detector Portable Underground Treasures Hunter Bounty HunterWaterproof Metal Detector Portable Underground Treasures Hunter Bounty Hunter $46.99
Kkmoon Md4030 Metal Detector Gold Digger Hunter Deep Sensitive Search WaterproofKkmoon Md4030 Metal Detector Gold Digger Hunter Deep Sensitive Search Waterproof $38.99 Metal Detector Pin Pointer Deep Sensitive Gold Treasure Search Digger Finder LcdMetal Detector Pin Pointer Deep Sensitive Gold Treasure Search Digger Finder Lcd $31.99 to $56.99
Brand New 6 Function Metal Detector.Brand New 6 Function Metal Detector. $50.00 6.5" Md-4030 Metal Detector Waterproof Sensitive Search Gold Treasure Hunter6.5" Md-4030 Metal Detector Waterproof Sensitive Search Gold Treasure Hunter $31.00
Minelab Pro-Find 15 Metal Detector Pinpointer w/ Holster 3226-0002Minelab Pro-Find 15 Metal Detector Pinpointer w/ Holster 3226-0002 $79.00 Garrett Ace 250 Metal Detector with 6.5" x 9" Proformance Waterproof CoilGarrett Ace 250 Metal Detector with 6.5" x 9" Proformance Waterproof Coil $61.00
Waterproof Led Metal Detector Sensitive Search Gold Digger Hunter All Metal DiscWaterproof Led Metal Detector Sensitive Search Gold Digger Hunter All Metal Disc $49.99 Bounty Hunter Gold Digger Metal DetectorBounty Hunter Gold Digger Metal Detector $66.99
New listing
		Quest Xpointer Scuba Tector Underwater Pi Li-Poly Metal DetectorNew listing Quest Xpointer Scuba Tector Underwater Pi Li-Poly Metal Detector $16.50 Garrett Metal Detector Master Sound Headphones 1603000 Dual Stereo/MonoGarrett Metal Detector Master Sound Headphones 1603000 Dual Stereo/Mono $12.99
New listing
		6.5" Waterproof Metal Detector Deep Sensitive Search Gold Digger Hunter FinderNew listing 6.5" Waterproof Metal Detector Deep Sensitive Search Gold Digger Hunter Finder $26.00 Garret Superwand metal detector 1165800Garret Superwand metal detector 1165800 $75.00
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 $59.99 List price:  Previous Price $109.49 Waterproof Lcd Metal Detector Gold Digger Light Hunter Deep Sensitive SearchWaterproof Lcd Metal Detector Gold Digger Light Hunter Deep Sensitive Search $61.99
Metal Detector Gp-Pointer Pinpointer Probe Waterproof Sensitive Tester ToolMetal Detector Gp-Pointer Pinpointer Probe Waterproof Sensitive Tester Tool $17.98 New listing
		Md-3010 Metal Detector Gold Digger High Sensitivity Light Hunter Lcd Display UsaNew listing Md-3010 Metal Detector Gold Digger High Sensitivity Light Hunter Lcd Display Usa $72.54
Md4030 Pro Metal Detector Gold Explorer Search Waterproof Coil LengthMd4030 Pro Metal Detector Gold Explorer Search Waterproof Coil Length $36.82 Was:  Previous Price $38.76 * Profeesional Underground Metal Detector Md3009Ii Gold Treasure Hunter Finder* Profeesional Underground Metal Detector Md3009Ii Gold Treasure Hunter Finder $59.95
Md720 Waterproof Metal Detector Underwater Underground Gold Detector PinpointingMd720 Waterproof Metal Detector Underwater Underground Gold Detector Pinpointing $33.23 Waterproof Automatic Metal Detector Pro Pinpointer Gold Digger Sensitive TesterWaterproof Automatic Metal Detector Pro Pinpointer Gold Digger Sensitive Tester $17.99
Sears Metal Detector Geb VintageSears Metal Detector Geb Vintage $20.00 Metal Detector Waterproof Pinpointer Precise Direction Underwater Finding ToolMetal Detector Waterproof Pinpointer Precise Direction Underwater Finding Tool $42.18
Waterproof Handheld Metal Detector Pinpointer Sensitive Search Hunter Finder UsWaterproof Handheld Metal Detector Pinpointer Sensitive Search Hunter Finder Us $12.89 Bounty Hunter Fast Tracker Metal DetectorBounty Hunter Fast Tracker Metal Detector $39.99
Bounty Hunter The Commando Metal DetectorBounty Hunter The Commando Metal Detector $99.95 Metal Detector Pro Pinpointer Gold Digger Hunter Sensitive Tester WaterproofMetal Detector Pro Pinpointer Gold Digger Hunter Sensitive Tester Waterproof $22.98 List price:  Previous Price $29.99
Md-4030 Waterproof Metal Detector Deep Sensitive Search Gold Digger Hunter 6.5inMd-4030 Waterproof Metal Detector Deep Sensitive Search Gold Digger Hunter 6.5in $44.25 Wildgame Innovations Ground Efx Model# Mx50 Storm Series Degital Metal DetectorWildgame Innovations Ground Efx Model# Mx50 Storm Series Degital Metal Detector $50.00
New listing
		Minelab Go-Find 66 Metal Detector with 10" inch 7.8 kHz Waterproof Search CoilNew listing Minelab Go-Find 66 Metal Detector with 10" inch 7.8 kHz Waterproof Search Coil $56.00 Md3010Ii Metal Detector Underground Search Coil Portable Lcd Auto Digger HunterMd3010Ii Metal Detector Underground Search Coil Portable Lcd Auto Digger Hunter $67.59
Used Whites 6000/D Pro Sl Metal DetectorUsed Whites 6000/D Pro Sl Metal Detector $65.00 750 Waterproof Underwater Metal Detector Pinpointer Pulse Induction Hand Held750 Waterproof Underwater Metal Detector Pinpointer Pulse Induction Hand Held $81.99
Bounty Hunter Discovery 3300 Lightweight Metal DetectorBounty Hunter Discovery 3300 Lightweight Metal Detector $40.00 New listing
		Garrett Pro-Pointer Ii Pinpointing Metal Detector. New listing Garrett Pro-Pointer Ii Pinpointing Metal Detector.  $33.00
Metal Detector Waterproof Pinpointer Gold Digger Hunter Finder Sensitive TesterMetal Detector Waterproof Pinpointer Gold Digger Hunter Finder Sensitive Tester $17.99 Aks Long Range Gold Metal Detector Gems Diamond Finder w/ 3 Antennas Handheld UsAks Long Range Gold Metal Detector Gems Diamond Finder w/ 3 Antennas Handheld Us $96.99
Metal Detector Treasure Search Digger Finder Lcd Waterpoof Coil Gold OutdoorMetal Detector Treasure Search Digger Finder Lcd Waterpoof Coil Gold Outdoor $39.99 Md-3010Ii Metal Detector Gold Digger Deep Sensitive Light Hunter Lcd Display NewMd-3010Ii Metal Detector Gold Digger Deep Sensitive Light Hunter Lcd Display New $50.98
Metal Detector Bounty Hunter Discovery 2200Metal Detector Bounty Hunter Discovery 2200 $65.00 New listing
		Garrett Ace 200 Metal Detector - BlackNew listing Garrett Ace 200 Metal Detector - Black $75.00
Garrett Metal Detector Sport DaypackGarrett Metal Detector Sport Daypack $63.45 Nokta Makro Pointer Waterproof Pinpointer Metal Detector with Holster, Case, BagNokta Makro Pointer Waterproof Pinpointer Metal Detector with Holster, Case, Bag $84.15
Ts180 Metal Detector Finds Waterproof High Sensitivity Treasure Gold Hunting LcdTs180 Metal Detector Finds Waterproof High Sensitivity Treasure Gold Hunting Lcd $86.88 Was:  Previous Price $129.67 New listing
		Radio Shack Metal DetectorNew listing Radio Shack Metal Detector $75.00
Pro Gp Pinpointer Metal Detector Waterproof Lanyard Pointer Detecting UnderwaterPro Gp Pinpointer Metal Detector Waterproof Lanyard Pointer Detecting Underwater $24.73 Metal Detector Underground Gold Digger Hunter Deep Sensitive FineMetal Detector Underground Gold Digger Hunter Deep Sensitive Fine $35.47
Waterproof Pinpointing Metal Detector Gold Digger Hunter Search Coil w/ BatteryWaterproof Pinpointing Metal Detector Gold Digger Hunter Search Coil w/ Battery $35.99 Metal Detector Gold Digger Finder Deep Sensitive Light Hunter w/ Lcd DisplayMetal Detector Gold Digger Finder Deep Sensitive Light Hunter w/ Lcd Display $59.99 List price:  Previous Price $160.90
New Lcd Metal Detector Gold Digger Hunter Finder 5" Deep Sensitive Search CoilNew Lcd Metal Detector Gold Digger Hunter Finder 5" Deep Sensitive Search Coil $28.99 Ar944M Underground Metal Detector Waterproof Depth1.5m/3m Scanner Finder Gold UsAr944M Underground Metal Detector Waterproof Depth1.5m/3m Scanner Finder Gold Us $69.99
Mp Series Mp3 Pro Metal DetectorMp Series Mp3 Pro Metal Detector $79.95 Kkmoon Metal Detector Gold Digger Hunter Deep Sensitive Search Waterproof C4M1Kkmoon Metal Detector Gold Digger Hunter Deep Sensitive Search Waterproof C4M1 $38.29
-40% Garrett Pro Pointer At Pinpointer Metal Detector Waterproof Pro free shippi-40% Garrett Pro Pointer At Pinpointer Metal Detector Waterproof Pro free shippi $50.99 Garrett Super Scanner V 1165190 Hand-Held Event Security Metal Detector WandGarrett Super Scanner V 1165190 Hand-Held Event Security Metal Detector Wand $49.99
White's Coinmaster Tr-Discriminator All Metal Detector - Perfect working orderWhite's Coinmaster Tr-Discriminator All Metal Detector - Perfect working order $89.99 Handheld Metal Detector Portable Security Super Scanner Wand Airport ScanHandheld Metal Detector Portable Security Super Scanner Wand Airport Scan $18.85
Depth metal detector Clone Pi W Search depth up to 3 meters Frame 40*60cm madeEuDepth metal detector Clone Pi W Search depth up to 3 meters Frame 40*60cm madeEu $87.00 Md3010Ii Lcd Dispaly Metal Detector Gold Digger Hunter Metal Finder + EarphoneMd3010Ii Lcd Dispaly Metal Detector Gold Digger Hunter Metal Finder + Earphone $64.98
Waterproof Metal Detector Pinpointer Sensitive Search Gold Hunter Finder GreenWaterproof Metal Detector Pinpointer Sensitive Search Gold Hunter Finder Green $16.71 Waterproof Metal Detector Gold Digger Hunter Finder Gp-Pinpointer Sensitive LedWaterproof Metal Detector Gold Digger Hunter Finder Gp-Pinpointer Sensitive Led $35.99 Was:  Previous Price $44.99
Waterproof Search Coil Metal Detector Treasure Digger Hunter w/Shovel+HeadphoneWaterproof Search Coil Metal Detector Treasure Digger Hunter w/Shovel+Headphone $67.59 Waterproof Lcd Metal Detector Gold Digger Deep High Sensitive Hunter Search CoilWaterproof Lcd Metal Detector Gold Digger Deep High Sensitive Hunter Search Coil $62.99
Hunter Gold Digger Metal Detector Deep Sensitive Search Gold CoilHunter Gold Digger Metal Detector Deep Sensitive Search Gold Coil $29.99 Waterproof Lcd Metal Detector Gold Digger Deep Sensitive High Sensitivity 2modesWaterproof Lcd Metal Detector Gold Digger Deep Sensitive High Sensitivity 2modes $61.74 Was:  Previous Price $64.99
Urceri Metal Detect
00002000
or Pinpointer Gold Digger Hunter Finder Waterproof w/ BatteryUrceri Metal Detect 00002000 or Pinpointer Gold Digger Hunter Finder Waterproof w/ Battery $35.99 Minelab Go-Find 11 Metal Detector *Brand New*Minelab Go-Find 11 Metal Detector *Brand New* $89.95 Trending at $99.00
 Metal Detector Classic Old Detectron 7T Metal Detector Classic Old Detectron 7T $18.00 Handheld Lcd Metal Detector Gold Digger Deep Sensitive Hunter Search Coil FinderHandheld Lcd Metal Detector Gold Digger Deep Sensitive Hunter Search Coil Finder $29.99
Brand New Winbest Pro Edition Metal Detector by BarskaBrand New Winbest Pro Edition Metal Detector by Barska $22.00 Underground Metal Detector Md3030 Lcd Display Treasure Hunter Finder Digger ToolUnderground Metal Detector Md3030 Lcd Display Treasure Hunter Finder Digger Tool $55.38
Waterproof Metal Detector Gold Digger Finder Deep Sensitive Hunting +Lcd DisplayWaterproof Metal Detector Gold Digger Finder Deep Sensitive Hunting +Lcd Display $67.59 Waterproof Metal Detector Deep Sensitive Search Gold Digger Hunter 6.5in Md-4030Waterproof Metal Detector Deep Sensitive Search Gold Digger Hunter 6.5in Md-4030 $35.88 Trending at $39.46
Pro Metal Detector Gp-pointer Garrett Static State gold Hunting Ip66 WaterproofPro Metal Detector Gp-pointer Garrett Static State gold Hunting Ip66 Waterproof $16.99 Bounty Hunter Mach 1 Metal Detector with 6" Weatherproof Search Coil, 7.0 kHzBounty Hunter Mach 1 Metal Detector with 6" Weatherproof Search Coil, 7.0 kHz $89.95 List price:  Previous Price $99.99
Metal Detector Sand Scoop - Black Plastic Treasure Scoop For DetectingMetal Detector Sand Scoop - Black Plastic Treasure Scoop For Detecting $7.83 Bounty Hunter Metal Detector Gold DiggerBounty Hunter Metal Detector Gold Digger $75.00
Waterproof Metal Detector Underground Search Gold Digger Hunter 8" w/ HeadphoneWaterproof Metal Detector Underground Search Gold Digger Hunter 8" w/ Headphone $75.99 Metal Detector Model Dx 5000 From Treasure Hunter - Free Shipping UsaMetal Detector Model Dx 5000 From Treasure Hunter - Free Shipping Usa $69.99
Lcd Metal Detector Gold Digger Hunter Deep Sensitive Waterproof Coil w/HeadphoneLcd Metal Detector Gold Digger Hunter Deep Sensitive Waterproof Coil w/Headphone $64.79 Was:  Previous Price $80.99 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
Bounty Hunter Challenger Metal Detector (Ss2034359)Bounty Hunter Challenger Metal Detector (Ss2034359) $69.99 Bounty Hunter Sharp Shooter Ii Metal Detector First Texas WorksBounty Hunter Sharp Shooter Ii Metal Detector First Texas Works $99.99
Waterproof Metal Detector Gold Digger Light Hunter Finder Deep Sensitive SearchWaterproof Metal Detector Gold Digger Light Hunter Finder Deep Sensitive Search $52.23 Was:  Previous Price $54.98 Portable Handheld Gp-Pointer Waterproof Metal Detector PinPointer Security CheckPortable Handheld Gp-Pointer Waterproof Metal Detector PinPointer Security Check $15.99
Professional Underground Metal Detector Md6250 High Sensitivity Metal Finder UsaProfessional Underground Metal Detector Md6250 High Sensitivity Metal Finder Usa $68.33 5 Excavated Civil War Indian Head Cents Found Minelab Metal Detector Equinox 8005 Excavated Civil War Indian Head Cents Found Minelab Metal Detector Equinox 800 $25.00
Canway Gc-1028 Handheld Waterproof Metal DetectorCanway Gc-1028 Handheld Waterproof Metal Detector $89.99 New listing
		Whites Tm 808 Treasuremaster 2 Box Metal Detector with Dual Race-Track AntennasNew listing Whites Tm 808 Treasuremaster 2 Box Metal Detector with Dual Race-Track Antennas $80.00
Garrett GroundHog Ads Vlf/Tr Metal DetectorGarrett GroundHog Ads Vlf/Tr Metal Detector $99.54 Bounty hunter tracker iv metal detector usedBounty hunter tracker iv metal detector used $45.00
Lcd Display Metal Detector Md3030 Treasure Hunter Gold Finder DiggerLcd Display Metal Detector Md3030 Treasure Hunter Gold Finder Digger $62.94 Treasure Cove Tc-1023 Metal Detector Set Waterproof Coil, Accurate Easy To UseTreasure Cove Tc-1023 Metal Detector Set Waterproof Coil, Accurate Easy To Use $99.99
Md-6200 Deep Sensitive Ground Metal Detector Waterproof Search Coil Gold HunterMd-6200 Deep Sensitive Ground Metal Detector Waterproof Search Coil Gold Hunter $99.88 Deep Ground Sensitive Waterproof Metal Detector Md3010Ii Gold Finder Lcd DisplayDeep Ground Sensitive Waterproof Metal Detector Md3010Ii Gold Finder Lcd Display $58.99 Was:  Previous Price $117.98
Click to see more Metal Detector items at www.ebay.com
Prices current as of last update, 01/16/20 10:44am.

Home Contact Resources Exchange Links ebay