eXp 4500

3D ground scanner for treasure hunters and gold seekers

Are you tired of finding only small objects near the surface? Do you want to detect the real buried treasures which lie deeper than a normal metal detector can detect? OKM introduces the multifunctional sub-surface imaging detector and ground scanner eXp 4500. Developed for treasure hunters as well as prospectors, the eXp 4500 allows to find those buried treasures.

Unlike other ground scanners and imaging detectors, the eXp 4500 is truly unique. Calling the eXp 4500 a simple detector is not justified, due to its multitude of built-in functions, the eXp 4500 can locate buried items, ancient artifacts, lost treasures and naturally occurring mineralization like gold and silver at depths well beyond that of a common metal detector.

  • Measurement Unit
    The measurement data are displayed immediately on the full color screen and stored in the internal memory.
  • Special Probes and Antennas
    Every single probe and antenna is tuned and optimized for its own purpose and function.
  • Operating Modes and Functions
    Hidden artifacts are of different sizes and made from different materials. The eXp 4500 ground scanner is capable of various operating modes.


  • 3D visualization
    3D visualization
  • Multilingual operation
    Multilingual operation
  • 3D ground scan
    3D ground scan
  • Mineral Scan
    Mineral Scan
  • GST / EMSR
    GST / EMSR
  • Exchangeable probes
    Exchangeable probes
  • Speaker
  • Live Sound
    Live Sound
  • Height adjustment
    Height adjustment
  • Rechargeable high-capacity battery
    Rechargeable high-capacity battery


Computer minimum requirements

  • CD-ROM drive: minimum 4x
  • Interface (Data transmission): USB
  • Free disk space: minimum 50 MB
  • Working memory (RAM): minimum 256 MB
  • Graphic card: minimum 128 MB, OpenGL-compatible
  • Processor: minimum 1.2 GHz
  • Operating system: Windows XP, Windows Vista, Windows 7, Windows 8, Windows 10

Data transmission

  • Technology: USB
  • Maximum Transfer Rate: 115200 Baud

Control unit

  • Dimensions (H x W x D): 220 x 160 x 295 mm
  • Weight: approx. 1350 g
  • Input voltage (max.): 12 – 14.4 V DC, 22 W maximum
  • Processor / Main CPU: 800 MHz, INTEL i586-compatible
  • Data memory: 256 MB
  • Operating temperature: 0°C – 70°C
  • Storage temperature: –20°C – 60°C
  • Waterproof: No
  • Operating time: approx. 3 hours (delivered power supply full charged, 25°C)
  • Air humidity: 5% – 75%
  • Feedback: acoustic, visual
  • Protection Type: IP40
  • Working memory: 256 MB RAM
The technical data are average values. Minor deviations are possible during operation.
  • OKM eXp 4500 Product flyer

    • File name: OKM-eXp-4500.pdf
    • File size: 780 kB
  • eXp 4500 NT Manual EN

    • File name: eXp4500_NT_Manual_EN.pdf
    • File size: 3.83 MB
  • eXp 4500 NT Manual FR

    • File name: eXp4500_NT_Manual_FR.pdf
    • File size: 5.3 MB
  • eXp 4500 NT Manual ES

    • File name: eXp4500_NT_Manual_ES.pdf
    • File size: 4.65 MB
  • Visualizer 3D Manual EN

    • File name: Visualizer3D_Manual_EN.pdf
    • File size: 1.77 MB
  • Visualizer 3D Manual DE

    • File name: Visualizer3D_Manual_DE.pdf
    • File size: 1.8 MB
  • Visualizer 3D Manual FR

    • File name: Visualizer3D_Manual_FR.pdf
    • File size: 1.19 MB
  • Visualizer 3D Manual ES

    • File name: Visualizer3D_Manual_ES.pdf
    • File size: 1.05 MB
  • Visualizer 3D Manual AR

    • File name: Visualizer3D_Manual_AR.pdf
    • File size: 1.35 MB
  • Visualizer 3D Manual TR

    • File name: Visualizer3D_Manual_TR.pdf
    • File size: 481 kB
  • Visualizer 3D Manual GR

    • File name: Visualizer3D_Manual_GR.pdf
    • File size: 1.93 MB
Below you will find the complete scope of delivery including all optionally available accessories.
n ≙ n times included, ≙ not included, ≙ optional epquipment
 LightProfessionalProfessional Plus
User’s manual111
Control unit111
3D software (“Visualizer 3D”) with data cable111
Power Pack with charger and travel adapter122
Super Sensor111
Waterproof and shock resistant Pelican case112
Telescopic rod assembly11
GPR-antenna (100 cm)1
GPR-antenna (25 cm)1
GPR-antenna (50 cm)11
GPR-antenna (75 cm)1
Sensor for tunnel detection1