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Minelab GPX 4500 metal detector

Minelab GPX 4500 metal detector

Minelab GPX 4500 metal detector

with 2 coils: 11-inch Double-D & 11" Monoloop 

Minelab GPX 4500 Metal Detector with 11-inch DD Search Coil, 11-inch Monoloop Search Coil, Coil Covers, Minelab Koss Headphones, Minelab Detecting Harness, and Green Rubbish and Finds Bag.

The GPX 4500 features MPS, DVT & SETA technologies, Versatile Timing, Six pre-programmed search modes, Stabilizer control, Ground Balance OFF, Target Volume, Iron Reject function, and Built-in amplifier.

This versatile detector is a proven gold finder with many features and great performance. With its advanced technologies, the GPX 4500 penetrates mineralized ground better and deeper than basic PI detectors.


Active or Retired Military can receive a 15% discount on the purchase of Minelab GPX 4500 metal detector by using the promotional code “ML15” at checkout (can not be used with metal detector bundles).

Please email a copy of DD 214 or Driver’s License with Veteran displayed on it to:

Minelab GPX 4500 Metal Detector for Relic and Gold Prospecting w/ 2 Search Coils

The versatile GPX-4500 is a proven gold finder with many features and great performance.

Incorporating Minelab’s superior Multi Period Sensing (MPS), Dual Voltage Technology (DVT) and Smart Electronic Timing Alignment (SETA) technologies it penetrates mineralized ground better and deeper than basic PI detectors.


  • 11-inch DD Search Coil
  • 11-inch Monoloop Search Coil
  • Minelab Koss Headphones
  • Minelab Detecting Harness
  • Green Rubbish and Finds Bag


  • MPS, DVT & SETA technologies- for superior gold detecting performance.
  • 2 coils supplied- 11-inch Double-D AND 11-inch Monoloop
  • Versatile Timing- settings for various ground conditions. The Enhance timing is a powerful feature, similar to the Sensitive Smooth timing, but provides an improvement in the depth and signal response on small and large targets alike. The Sharp timing is more suited to quieter soils and can also help to pinpoint faint targets.
  • Six pre-programmed search modes- for easy switch-on-and-go detecting. All six search modes can be modified with your favorite settings and renamed.
  • Stabilizer control- for the smoothest threshold. In noisy conditions, turning it up will provide you with a smoother threshold. In quiet conditions, decrease the stabilizer and faint target signals will be more obvious.
  • Ground Balance OFF- for neutral soils. This is a useful feature for very benign low mineralized or salt saturated soils. This setting will also work well for treasure or relic hunters in loam or sandy soils.
  • Backlight- with adjustable time-out to preserve battery life.
  • Target Volume- allows you to increase the strength of softer target signals. This is useful in windy conditions, for people suffering from hearing loss, and to adjust the audio volume when using external speakers. This can also provide an audio boost in mild soils, and can be used to smooth out ground noise signals in highly mineralized soils.
  • The Iron Reject function- allows you to set the desired level of discrimination, from cautious to aggressive. This enables detecting in areas with high levels of ferrous junk.
  • Built-in amplifier- so you can hear soft target signals from deeper nuggets, more easily. The Li-lon battery pack includes a built-in audio amplifier, allowing you to use an external speaker without the need for any external booster.


APPLICATIONGold Prospecting & Deep Relic
FREQUENCY/TRANSMISSIONBi-Level, Advanced Pulse Induction
COIL (STANDARD)11″ Double-D AND 11-inch Monoloop
AUDIO OUTPUT6.35mm (1/4″) headphone/speaker jack.
HEADPHONES SUPPLIEDKoss 100 ohm headphones.
VISUAL DISPLAYTransflective LCD screen 64×128 pixels
BACKLIGHTYes with adjustable automatic ‘time-out’.
MEMORYSetting changes saved automatically and remain until changed or reset. Factory Presets can be restored on start-up.
DETECT MODESGeneral, Deep & Custom. Custom Modes are: Hi Mineral, Hi Trash, Patch & Test A.
DISCRIMINATIONIron Reject: range 1 to 10 & All Metal.
TIMINGSEnhance, Normal, Sensitive Smooth, Salt Course, Sensitive Extra & Sharp.
AUDIO TONEVariable Control 1 to 100.
AUDIO TYPEQuiet, Normal, Deep & Boost.
GROUND BALANCEAutomatic Ground Balance, Fixed & Tracking: Slow, Medium & Fast.
GROUND BALANCE TYPEGeneral, Specific & Ground Balance Off.
PINPOINTQuick-Trak button.
TUNE / NOISE CANCELAutomatic & Manual 0 to 255.
THRESHOLDAdjustable turn control.
TARGET VOLUME ADJUSTVolume Limit 1 to 20.
BATTERYLithium-Ion with built-in amplifier (up to 12 hrs). Supplied with mains and vehicle charger.
LENGTH1100mm – 1300mm (43.3″ – 51.2″).
WEIGHT2.4kg (5.3lbs) (ex. battery).
WARRANTY3 years control box & coil.
Minelab GPX 4500 metal detector

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  • Stock: In Stock
  • Model: GPX 4500