OKM eXp 4500 vs. 5500 Comparison
The OKM eXp 4500 and eXp 5500 are German-made 3D ground scanners. This comparison outlines their sensor systems, scanning workflow, displays, and practical field-use considerations to help you compare the two model lines.
OKM eXp 5500 Professional. Equipment shown varies by package.
OKM eXp 4500 vs. eXp 5500: Key Features
The eXp 4500 column covers Pro / Pro Plus configurations; the eXp 5500 column covers the Professional model. Equipment and included accessories vary by package.
| Feature | OKM eXp 4500 Pro / Pro Plus | OKM eXp 5500 Professional |
|---|---|---|
| Model generation | Earlier model line | Newer model line |
| Sensor system | Single Super Sensor and exchangeable individual probes | PentaSense system with up to five simultaneous Super Sensors, incorporating 10 internal sensors side by side |
| Scanning workflow | Standard single-line scanning | Multi-sensor scanning; approximately five times faster in the configuration described, with two walked scan lines capturing 10 data points simultaneously |
| Detection modes and discrimination | VLF, Pinpointer, Mineral Scan, and Magnetometer modes | Individual multi-frequency VLF with PentaCoil and Target-ID discrimination |
| Listed maximum depth | Up to 21–25 meters, depending on configuration | Up to 25 meters (82 feet) |
| Control unit display | 6.5-inch TFT color display, 640 × 480 resolution | 8.4-inch IPS-LCD touchscreen, 1024 × 768 resolution |
| Data and connectivity | Standard USB and 8 GB internal memory | USB-C for data transfer and charging |
| Software | Visualizer 3D Studio | Visualizer 3D Studio Professional Edition; a dedicated Windows notebook may be included, depending on the bundle |
Maximum depth and scanning speed are not guaranteed field results. Target characteristics, ground conditions, configuration, and scanning technique affect performance. Confirm specifications and package contents for the exact model before purchasing.
Main Differences
- Sensor array and scanning speed: The eXp 4500 uses individual probes. The eXp 5500's PentaSense array combines multiple sensors for wider-area scanning, reducing the number of passes needed in suitable conditions.
- Interface and hardware: The eXp 5500 replaces the eXp 4500's button-operated TFT display with a larger IPS-LCD touchscreen and USB-C connectivity.
- VLF discrimination: The eXp 5500 adds the PentaCoil multi-frequency VLF system and Target-ID discrimination, compared with the eXp 4500's earlier coil and probe options.
Practical Trade-Offs to Consider
The newer model's features are only part of the decision. Consider your terrain, survey area, and preferred controls when comparing these scanners.
Mineral Scan: The eXp 5500 Is Not Intended for Mineral-Vein Location
The key distinction is intended use: the eXp 5500 is not intended for locating natural mineral veins. Searching for buried treasures, cavities, or relics in mineralized soil is a different task from mapping natural mineral deposits or gold veins.
- Choose the eXp 4500 for mineral-vein prospecting: Its standalone Mineral Scan mode, used with the Super Sensor, is intended for investigating natural mineral deposits and gold veins.
- Choose the eXp 5500 for buried treasures, cavities, and relics: Its multi-sensor scanning and multi-frequency filtering serve buried-target searches, including searches in mineralized soil. These features are not a substitute for a dedicated Mineral Scan mode for mineral-vein location.
- Other OKM options for Mineral Scan: The OKM Rover C4 and OKM eXp 7000 are also models to consider for mineral-scanning purposes. Compare their Mineral Scan configurations and included probes when choosing a system for your prospecting needs.
OKM Rover C4. Equipment shown varies by package.
Sensor Setup and Access
A wide multi-sensor assembly can be less convenient in dense brush, narrow routes, or rocky terrain than a single compact probe. Consider how much open space your survey sites provide and which probe configuration you expect to use.
Power Planning
For remote or multi-day trips, compare the specified battery runtime and charging options for your intended configuration. Plan power supplies around the display settings, sensors, and operating modes you will use rather than assuming either model will last longer in the field.
Touchscreen or Physical Buttons
The eXp 4500 uses physical buttons, while the eXp 5500 uses a touchscreen interface. If you regularly work with gloves, muddy hands, or dust, consider how each control layout fits your routine and check the manufacturer's operating and care instructions.