SPECIAL FEATURES
- Multi-Sensor 3D Ground Scan and Individual Multi-Frequency VLF with Metal Discrimination
- Detection Depth: With this technology customers can find objects down to 25 m (82 ft) deep
- Use Cases: Archaeology, Treasure Hunting, Cavity Detection
- Operating Modes: 3D Ground Scan, Magnetometer, VLF Metal Detection
- Detectable Objects: Artifacts, militaria, treasure chests, cavities, tunnels, jewelry
USE CASES

INCLUDES:
- 1x Control Unit
- 1x Waterproof and shock-resistant Protector Case
- 1x Super Sensor with LED Orbit
- 1x Bluetooth Headphones incl. charging cable
- 1x USB Flash Drive with OKM Visualizer 3D Studio Professional Edition
- 1x Pre-configured Windows Notebook
- 1x PentaCoil (VLF Search Coil)
- 1x Telescopic Rod
- 1x Carrying strap
- 1x Charger with charging cable (USB-C)
- 1x Power Pack PP20V3A01
- 4x Enhancer
- 1x PentaSense Rod
- 4x Protective Cap
- 1x Backstrap
- Bonus: One Hour OKM 3D Software Free Training, 1x OKM Power Pack
- 2 Year Limited Warranty
(The actual scope of delivery is subject to technical developments or specific model configurations and can differ from depicted components.)
More Details
PentaSense: The Multi-Sensor Scanning System with up to 5 Simultaneous Super Sensors
The PentaSense System is an advanced multi-sensor system whose 10 sensors take over the function of 5 Super Sensors side by side to perform high-resolution measurements on very wide scan fields. Thus, the eXp 5500 offers treasure hunters a new flexibility in terms of field and location requirements.
PentaSense Rod: Ergonomic Handling For Best Scan Results
Using the PentaSense Rod allows you to balance the probe ergonomically in front of you even on sloping terrain. Due to the greater distance between the probe and the detectorist, you can walk comfortably without having any influence on the measurement. In this way, you can achieve even clearer and more accurate scan results.
Detect Treasures in Different Terrains
The OKM eXp 5500 Professional is the ideal solution for exploring difficult terrain as well as wide areas fast and easily. Whether you use the Super Sensor separately or add sensor modules, called Enhancers, this 3D ground scanner adapts perfectly to different types of terrain, e.g. rocky mountain landscapes or vast desert areas.
Super Sensor Configurations: 1 – 3 – 5
The four interchangeable Enhancers can be plugged into any of the four Super Sensor sockets and thus allow for highest flexibility during assembly. With all four sensor modules, the PentaSense System is complete and allows you to scan the target area as if you carry five Super Sensors side by side simultaneously.
Metal Detection with VLF Technology
Very Low Frequency (VLF) allows detectorists to find metal objects in shallow soil. The VLF coil emits an electromagnetic field into the ground, which generates electric currents in buried metal objects. This creates its own electromagnetic field in the target objects, which can be detected by the eXp 5500. VLF metal detectors are particularly efficient at locating a variety of metals, including artifacts, relics, militaria, coins and jewelry.
Metal Discrimination for All Use Cases
With the eXp 5500 PentaCoil and its proprietary VLF search coil technology, treasure hunters, archaeologists, gold prospectors and militaria seekers can discriminate valuable metal objects made of gold and silver from iron and bronze relics and artifacts. This metal discrimination further enhances the efficiency and accuracy when exploring and searching for treasures and artifacts.
Specifications
Control Unit
| Dimensions (H x W x D) | 3 x 8.3 x 9.1″ |
| Weight | 60 oz |
| Battery | Li-ion, replaceable, 7.27 V, 10.2 Ah, 74.154 Wh |
| Input | 12 V DC, 3 A max |
| Output | 6.4 – 8.4 V DC, 15 W max |
| Operating Time (Fully Charged) | 7 h @ 77°F |
| Charging Time | 3 h @ 50 – 86°F |
| Display | 8.4″ Diagonal, 1024 x 768 Pixel LVDS IPS-LCD |
| Processing Unit | Main (ARM Cortex 4x-A53@1.6GHz), Companions (1x-M33@96MHz, 1x-M4@48MHz, 1x-M33@38MHz, 1x-M7@216MHz) |
| Working Memory (RAM) | 2 GB |
| Data Memory (eMMC) | 8 GB |
| Operating Temperature | -10 °C – 50 °C |
| Storage Temperature | -20 °C – 60 °C |
| Air Humidity | 5 % – 75 % |
| Safety Class | IP40 |
| Waterproof | No |
| Data Transmission | USB-C |
| Feedback | Acoustic, visual |
| Audio | Built-in speakers or Bluetooth-LowLatency (A2DP) |
Super Sensor
| Dimensions (L x W x D) | 39.8 x 7.9 x 4.3″ |
| Weight | 26.1 oz |
| Cable Length | 70″ |
| Input | 6.4 – 8.4 V DC, 4 W |
| Safety Class | IP40 |
| Receiver | Dual/Hi-Gain, Vertical, Geophysical Phase Reader/EMSR |
| Sensor Technology | SCMI-15-D |
| Processing Unit | ARM Cortex-M33@38MHz |
Enhancer
| Length | 335 mm |
| Diameter | 45 mm |
| Weight | Approx. 0.1 kg |
| Input | 5.0 V DC, 0.25 W max |
| Safety Class | IP40 |
| Sensor Technology | SCMI-15-D |
PentaCoil
| Dimensions (L x W x H) | 345 x 265 x 70 mm |
| Weight | 0.84 kg |
| Cable Length | 1.80 m |
| Input | 6.4 – 8.4 V DC, 2 W max |
| Safety Class | IP40 |
| Technology | VLF |
| Processing Unit | ARM Cortex-M7@216MHz |
PentaSense Rod
| Dimensions, closed (L x W x H) | 920 x 70 x 150 mm |
| Dimensions, opened (L x W x H) | 1520 x 70 x 130 mm |
| Weight | 2.76 kg |
*The technical data are average values. Minor deviations are possible during operation.
Videos
How to Redeem Your Free Gifts 🎁
Once your order is placed, our team will reach out to you via email to see if you’re interested in a complimentary One-Hour OKM 3D Software Training Session. If you’d like to take advantage of this offer, we’ll help you schedule your session at a convenient time.
In the same email, you’ll also be offered a free OKM Power Pack. We’ll ask for your preferred plug type—choose from USB-C, D/C, 3P, or 4P—and we’ll include it with your package.

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