GPX 4500 Metal Detector

GPX 4500 Metal Detector


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GPX 4500 Metal Detector

GPX 4500 Metal Detector – The versatile GPX‑4500 has great performance on all sizes of gold, and penetrates mineralized ground deeper than all basic PI detectors.


Versatile Timing Settings – 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 – Easy switch-on-and-go detecting. All six search modes can be modified with your favorite settings and renamed.

Ground Balance – Turn off for neutral soils. Ground Balance is useful 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.

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.

Iron Reject – Allows you to set the desired level of discrimination, from cautious to aggressive. This enables detecting in areas with high levels of ferrous junk.

Stabilizer Control – In noisy conditions, turning down the stabilizer control will provide you with a smoother threshold. In quiet conditions, increase the stabilizer and faint target signals will be more obvious.

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.

Backlight – Includes adjustable time-out to preserve battery life.

Two Coils Supplied – 11-inch Double-D for general use and 11″ Monoloop for deeper detecting.

For more information or questions you may have please call 505-598-9984 or you can contact us here.

Additional information

Weight 8 lbs
Dimensions 28 × 16 × 5 in


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MPS (Multi Period Sensing) is Minelab’s advanced Pulse Induction (PI) technology that transmits pulses of different time periods. MPS also samples the receive signal at multiple time periods allowing target signals and ground signals to be separated. This effectively removes the ground signal from even the most highly mineralised ground while still being sensitive to both small and deep gold. This achieves superior depth in extremely mineralised ground.


Gold Prospecting & Deep Relic
Bi-Level, Advanced Pulse Induction
Coil (standard)
11″ Double-D AND 11″ Monoloop
Audio Output
6.35mm (1/4″) headphone/speaker jack.
Headphones Supplied
Koss 100 ohm headphones.
Visual Display
LCD screen 64×128 pixels, transflective.
Yes with adjustable automatic ‘time-out’.
Product ID
USB Connectivity
Setting changes saved automatically and remain until changed or reset. Factory Presets can be restored on start-up.
Depth Indication
Detect Modes
General, Deep & Custom. Custom Modes are: Hi Mineral, Hi Trash, Patch & Test A.
Iron Reject: range 1 to 10 & All Metal.
Enhance, Normal, Sensitive Smooth, Salt Course, Sensitive Extra & Sharp.
Audio tone
Variable Control 1 to 100.
Audio Type
Quiet, Normal, Deep & Boost.
Ground Balance
Automatic Ground Balance, Fixed & Tracking: Slow, Medium & Fast.
Ground Balance Type
General, Specific & Ground Balance Off.
Trash Density
Quick-Trak button.
Sensitivity Adjust
Rx Gain 1 to 15.
Tune / Noise Cancel
Automatic & Manual 0 to 255.
Adjustable turn control.
Target Volume Adjust
Volume Limit 1 to 20.
Lithium-Ion with built-in amplifier (up to 12 hrs). Supplied with mains and vehicle charger.
Low battery alert
Audio alert.
1100mm – 1300mm (43.3″ – 51.2″).
2.4kg (5.3lbs) (ex. battery).
3 years control box & coil.
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