OKM Rover C4 Metal Detector
Highlights
- A World Wide Best Seller: 3D ground scanner and metal detector
- Depth: Objects can be found to 25 m (82 ft) deep
- Uses: treasure hunting, natural gold prospection
- Operating modes: 3D Ground Scan, Pinpointer, Magnetometer, Mineral Scan
- Detectable objects: natural gold minerals, treasure chests, jewelry, militaria

This detector is easy to handle via its touch screen. It can detect lost treasures (coins, rings, jewelry, etc.) as well as void structures (tunnels, caves, chambers, etc.). The detector is also equipped with an innovative LED orbit which indicates underground targets visually. While scanning the ground, this LED sphere emits colored light to visualize detected metals and cavities.
We improved the metal detection technology of the Rover series and created the OKM Rover C4. With this metal detector and 3D ground scanner, we have massively simplified your treasure hunting experience. We have combined three previous detectors (rover OKM C, Rover C II, and Rover Gold) to create the Rover C4, our best version yet.
This treasure detector is easy to operate via the provided touch screen. It can detect lost treasures (coins, rings, jewelry) as well as empty structures (tunnels, caves, chambers, sepulchers). The detector is also equipped with an innovative LED orbit which visually indicates targets subways. When scanning the floor, this LED sphere emits colored light to visualize the detected metals and cavities.
The additional features of the Rover C4 are:
- Supported operating modes: ground scan, pinpointer, mineral scan, magnetometer
- Graphical user interface in many different languages
- Operational touch screen with alternative hardware buttons
- Multi-level LED illumination for operating the detector in dark environments
- Wireless data transfer
- 4 separate memory areas for storing recorded measurement data
- Standard and super sensor probe with innovative LED orbit
Ground scan with the Rover C4 metal detector
One of the most versatile modes of operation in our 3D metal detectors is Ground Scan. This function is used to scan a rectangular area for measurement data of underground structures and objects.
The detectable elements that can be found with the Rover C4 3D ground scanner are:
Lost treasures and hidden precious metals
Treasure chests, gold coins, jewelry, silverware, statues, valuables in general, buttons, and medals.
Underground tunnels and cavities
Tunnels, tombs, chambers, cellars, sepulchers, booths, shelters, and bunkers.
Natural gold minerals
Gold ore, gold deposits, and gold veins.
When walking across the field following a certain movement (parallel or zig-zag), the treasure hunter scans the area of interest; using the recorded data, the Visualizer 3D software then creates a 3D image that represents all detected underground objects. This way, you'll know where and how deep the treasures are in the ground.
3D data analysis with the Visualizer 3D software
All data that was recorded with the Rover C4 metal detector during an earth or mineral scan can be transferred to the Visualizer 3D software to create a detailed three-dimensional analysis.
During this analysis you can:
Identify potential objects and hidden treasures
You will see that targets are represented by different colors. The color information will tell you whether it is a ferrous metal (iron, steel, ...), precious metal (gold, silver, bronze, copper, ...), or an empty structure (cave, tunnel, tomb, chamber, ...).
Determine position and depth
The software shows the position of the detected anomalies and, depending on the soil chosen, the depth of the burial of the target soil.
Calculate object dimensions
Along with depth information, Visualizer 3D can also calculate the dimensions of targets hidden and buried elements.
Package Includes
- Control Unit
- Carrying Tube
- Windows Notebook Laptop with touchscreen and 3D Visualizer Software
- USB Bluetooth Dongle
- Super Sensor with LED Orbit
- Standard Probe with LED Orbit
- Wireless Headphones (Bluetooth)
- Waterproof and Shock Resistant Peli Case
- Power Pack Incl. Charger and Travel Adapter
Specifications
Control unit
- Dimensions (H x W x D): 390 x 300 x 140 mm
- Weight: about 1.5 kg
- Input voltage (max.): 19 V DC, 3.16 A, 60 W
- Processor / Main CPU: Cortex M3, 32 MHz
- Processor / Slave CPU: Cortex M0, 24 MHz
- Display: 3.5” Resistive touch, 480 x 320 Pixel
- Display CPU: Cortex M3, 32 MHz, 128 KB RAM
- Data memory: 4 GB
- Sample rate: 1024 values / second
- Measurement resolution: 16 bit
- Operating temperature: –10°C – 60°C
- Storage temperature: –20°C – 70°C
- Audio: Internal speaker / Bluetooth
- Waterproof: No
- Air humidity: 5% – 75%
Standard Probe
- Weight: 0.4 kg
- Length: 445 mm
- Diameter tube / LED Orbit: 35 mm / 65 mm
- Technology: SCMI-15-D
Super Sensor
- Weight: 0.9 kg
- Length: 960 mm
- Diameter tube / LED Orbit: 50 mm / 65 mm
- Technology: SCMI-15-D
Data transmission
- Technology: Bluetooth 5.1
- Frequency: 2.402 – 2.480 GHz
- Maximum Transfer Rate: 1 Mbps
- Maximum Transmitting Power: +8 dBm
- Maximum Range: approx. 10 m
Computer minimum requirements
- Interface (data transmission): USB 2.0
- Free disk space: 250 MB
- Working memory (RAM): 2 GB
- Display: 1920 x 1080
- Processor: 1.2 GHz
- Graphics card: 1 GB RAM, OpenGL 3.3
- Operating system: Windows 10
Please Read Before Purchasing
USA Customers
We now ship all OKM products from the USA, please allow up to 3-7 days to receive this product.
International Customers Outside of the USA
Import Duties, Taxes, Shipping costs, and any potential charges are not included in the item price. These potential charges are the customer's responsibility. Please email us at support@modernmetaldetectors.com to tell us which country you would like this product shipped to and we can tell you the cost of shipment. Please also check with your country's customs office to determine if you are liable to pay import taxes prior to buying.
| Shipping |

Our goal is to keep the ordering process as simple as possible.
We offer free shipping on orders over $250.
Shipping times vary from 1 to 4 days on average.
Order Confirmation:
- You will receive an order confirmation email immediately after placing your order. This means we have authorized your credit card and are preparing your order for shipment.
- As soon as we receive your order, we contact our warehouse to confirm it is in stock and available for immediate shipment.
- If your item is on backorder or unavailable, we will contact you via email.
- If your item is available for immediate shipment, we will process the charges and submit the order for shipment.
Order Shipment:
- If your order is in stock and your credit card is approved, your order will ship within 1–2 business days.
- Tracking information will be sent within 24 hours to the email provided at checkout.
- All orders require a signature upon delivery.
- We ship daily via UPS Ground, FedEx Ground, and Freight to the lower 48 states.
- Most orders placed before 1 PM MST ship the same day (some exceptions apply).
- Shipping is included for ground orders to the lower 48 states. AK & HI ship at an additional cost.
- A phone number is required for freight deliveries to schedule an appointment.
- Failure to provide a phone number may delay delivery and may result in storage fees.
- We do not offer Cash on Delivery.
Inspecting Damages:
- Please inspect packaging when your items arrive.
- If your item arrives damaged, email photos to support@modernmetaldetectors.com and we will process an insurance claim on your behalf.
Cancellations & Refunds:
- Orders canceled after payment are subject to a non-refundable card processing fee of 2.6% to cover payment processor costs.
- If your item is on backorder and you cancel before shipment, the 2.6% processing fee applies.
- If your order has shipped, you are responsible for return shipping and a 15% restocking fee applies.
- Refunds are issued to the original payment method.
Backorders:
- If a product is out of stock, we will notify you immediately with the expected arrival time and available substitutes.
- Arrival times may change due to shipping delays or manufacturing issues.
- You may choose to keep, substitute, or cancel your order if arrival times change.
- Once backorders arrive, they will ship and tracking will be emailed.
Shipping from Abroad & Import Duties – USA Customers:
Please Read Before Purchasing
Customers are responsible for any import taxes, customs fees, tariffs, or duties. You will be contacted before delivery once the item reaches the United States to arrange payment of applicable fees.
Shipping Origins by Brand:
- Vertex – Germany
- BR Systems – Turkey
Freight LTL Shipment
If you purchased a large or heavy item (such as a walk-through metal detector), your item will ship freight with lift-gate service.
- The freight dispatcher will call to schedule a delivery appointment.
- You must be present during the delivery window to sign.
- Delivery windows are typically 8 AM–12 PM or 12 PM–4 PM.
- Please ensure your phone number at checkout is correct.
- Do not screen calls until delivery is complete.
- Freight delivery includes one driver and curbside placement only.
- Keep all original packaging and pallets if returning the item.
Freight Damage Procedure:
- Inspect immediately with the driver present.
- Note any damage on the carrier paperwork.
- If unable to inspect immediately, write: "Carton damage, subject to inspection".
- Inspect contents within 48 hours and report damage to the carrier.
- If packaging damage is severe, refuse shipment and notify us immediately.
Carton packaging has excessive damage to the exposed product:
- Refuse shipment
- Sign the carrier paperwork: “Carton damaged and refused.”
- Notify Modern Metal Detectors immediately.
If you have any questions, please contact us at support@modernmetaldetectors.com
QUESTIONS & ANSWERS
Have a Question?
Be the first to ask a question about this.
Description
OKM Rover C4 Metal Detector
Highlights
- A World Wide Best Seller: 3D ground scanner and metal detector
- Depth: Objects can be found to 25 m (82 ft) deep
- Uses: treasure hunting, natural gold prospection
- Operating modes: 3D Ground Scan, Pinpointer, Magnetometer, Mineral Scan
- Detectable objects: natural gold minerals, treasure chests, jewelry, militaria

This detector is easy to handle via its touch screen. It can detect lost treasures (coins, rings, jewelry, etc.) as well as void structures (tunnels, caves, chambers, etc.). The detector is also equipped with an innovative LED orbit which indicates underground targets visually. While scanning the ground, this LED sphere emits colored light to visualize detected metals and cavities.
We improved the metal detection technology of the Rover series and created the OKM Rover C4. With this metal detector and 3D ground scanner, we have massively simplified your treasure hunting experience. We have combined three previous detectors (rover OKM C, Rover C II, and Rover Gold) to create the Rover C4, our best version yet.
This treasure detector is easy to operate via the provided touch screen. It can detect lost treasures (coins, rings, jewelry) as well as empty structures (tunnels, caves, chambers, sepulchers). The detector is also equipped with an innovative LED orbit which visually indicates targets subways. When scanning the floor, this LED sphere emits colored light to visualize the detected metals and cavities.
The additional features of the Rover C4 are:
- Supported operating modes: ground scan, pinpointer, mineral scan, magnetometer
- Graphical user interface in many different languages
- Operational touch screen with alternative hardware buttons
- Multi-level LED illumination for operating the detector in dark environments
- Wireless data transfer
- 4 separate memory areas for storing recorded measurement data
- Standard and super sensor probe with innovative LED orbit
Ground scan with the Rover C4 metal detector
One of the most versatile modes of operation in our 3D metal detectors is Ground Scan. This function is used to scan a rectangular area for measurement data of underground structures and objects.
The detectable elements that can be found with the Rover C4 3D ground scanner are:
Lost treasures and hidden precious metals
Treasure chests, gold coins, jewelry, silverware, statues, valuables in general, buttons, and medals.
Underground tunnels and cavities
Tunnels, tombs, chambers, cellars, sepulchers, booths, shelters, and bunkers.
Natural gold minerals
Gold ore, gold deposits, and gold veins.
When walking across the field following a certain movement (parallel or zig-zag), the treasure hunter scans the area of interest; using the recorded data, the Visualizer 3D software then creates a 3D image that represents all detected underground objects. This way, you'll know where and how deep the treasures are in the ground.
3D data analysis with the Visualizer 3D software
All data that was recorded with the Rover C4 metal detector during an earth or mineral scan can be transferred to the Visualizer 3D software to create a detailed three-dimensional analysis.
During this analysis you can:
Identify potential objects and hidden treasures
You will see that targets are represented by different colors. The color information will tell you whether it is a ferrous metal (iron, steel, ...), precious metal (gold, silver, bronze, copper, ...), or an empty structure (cave, tunnel, tomb, chamber, ...).
Determine position and depth
The software shows the position of the detected anomalies and, depending on the soil chosen, the depth of the burial of the target soil.
Calculate object dimensions
Along with depth information, Visualizer 3D can also calculate the dimensions of targets hidden and buried elements.
Package Includes
- Control Unit
- Carrying Tube
- Windows Notebook Laptop with touchscreen and 3D Visualizer Software
- USB Bluetooth Dongle
- Super Sensor with LED Orbit
- Standard Probe with LED Orbit
- Wireless Headphones (Bluetooth)
- Waterproof and Shock Resistant Peli Case
- Power Pack Incl. Charger and Travel Adapter
Specifications
Control unit
- Dimensions (H x W x D): 390 x 300 x 140 mm
- Weight: about 1.5 kg
- Input voltage (max.): 19 V DC, 3.16 A, 60 W
- Processor / Main CPU: Cortex M3, 32 MHz
- Processor / Slave CPU: Cortex M0, 24 MHz
- Display: 3.5” Resistive touch, 480 x 320 Pixel
- Display CPU: Cortex M3, 32 MHz, 128 KB RAM
- Data memory: 4 GB
- Sample rate: 1024 values / second
- Measurement resolution: 16 bit
- Operating temperature: –10°C – 60°C
- Storage temperature: –20°C – 70°C
- Audio: Internal speaker / Bluetooth
- Waterproof: No
- Air humidity: 5% – 75%
Standard Probe
- Weight: 0.4 kg
- Length: 445 mm
- Diameter tube / LED Orbit: 35 mm / 65 mm
- Technology: SCMI-15-D
Super Sensor
- Weight: 0.9 kg
- Length: 960 mm
- Diameter tube / LED Orbit: 50 mm / 65 mm
- Technology: SCMI-15-D
Data transmission
- Technology: Bluetooth 5.1
- Frequency: 2.402 – 2.480 GHz
- Maximum Transfer Rate: 1 Mbps
- Maximum Transmitting Power: +8 dBm
- Maximum Range: approx. 10 m
Computer minimum requirements
- Interface (data transmission): USB 2.0
- Free disk space: 250 MB
- Working memory (RAM): 2 GB
- Display: 1920 x 1080
- Processor: 1.2 GHz
- Graphics card: 1 GB RAM, OpenGL 3.3
- Operating system: Windows 10
Please Read Before Purchasing
USA Customers
We now ship all OKM products from the USA, please allow up to 3-7 days to receive this product.
International Customers Outside of the USA
Import Duties, Taxes, Shipping costs, and any potential charges are not included in the item price. These potential charges are the customer's responsibility. Please email us at support@modernmetaldetectors.com to tell us which country you would like this product shipped to and we can tell you the cost of shipment. Please also check with your country's customs office to determine if you are liable to pay import taxes prior to buying.
Shipping
| Shipping |

Our goal is to keep the ordering process as simple as possible.
We offer free shipping on orders over $250.
Shipping times vary from 1 to 4 days on average.
Order Confirmation:
- You will receive an order confirmation email immediately after placing your order. This means we have authorized your credit card and are preparing your order for shipment.
- As soon as we receive your order, we contact our warehouse to confirm it is in stock and available for immediate shipment.
- If your item is on backorder or unavailable, we will contact you via email.
- If your item is available for immediate shipment, we will process the charges and submit the order for shipment.
Order Shipment:
- If your order is in stock and your credit card is approved, your order will ship within 1–2 business days.
- Tracking information will be sent within 24 hours to the email provided at checkout.
- All orders require a signature upon delivery.
- We ship daily via UPS Ground, FedEx Ground, and Freight to the lower 48 states.
- Most orders placed before 1 PM MST ship the same day (some exceptions apply).
- Shipping is included for ground orders to the lower 48 states. AK & HI ship at an additional cost.
- A phone number is required for freight deliveries to schedule an appointment.
- Failure to provide a phone number may delay delivery and may result in storage fees.
- We do not offer Cash on Delivery.
Inspecting Damages:
- Please inspect packaging when your items arrive.
- If your item arrives damaged, email photos to support@modernmetaldetectors.com and we will process an insurance claim on your behalf.
Cancellations & Refunds:
- Orders canceled after payment are subject to a non-refundable card processing fee of 2.6% to cover payment processor costs.
- If your item is on backorder and you cancel before shipment, the 2.6% processing fee applies.
- If your order has shipped, you are responsible for return shipping and a 15% restocking fee applies.
- Refunds are issued to the original payment method.
Backorders:
- If a product is out of stock, we will notify you immediately with the expected arrival time and available substitutes.
- Arrival times may change due to shipping delays or manufacturing issues.
- You may choose to keep, substitute, or cancel your order if arrival times change.
- Once backorders arrive, they will ship and tracking will be emailed.
Shipping from Abroad & Import Duties – USA Customers:
Please Read Before Purchasing
Customers are responsible for any import taxes, customs fees, tariffs, or duties. You will be contacted before delivery once the item reaches the United States to arrange payment of applicable fees.
Shipping Origins by Brand:
- Vertex – Germany
- BR Systems – Turkey
Freight LTL Shipment
If you purchased a large or heavy item (such as a walk-through metal detector), your item will ship freight with lift-gate service.
- The freight dispatcher will call to schedule a delivery appointment.
- You must be present during the delivery window to sign.
- Delivery windows are typically 8 AM–12 PM or 12 PM–4 PM.
- Please ensure your phone number at checkout is correct.
- Do not screen calls until delivery is complete.
- Freight delivery includes one driver and curbside placement only.
- Keep all original packaging and pallets if returning the item.
Freight Damage Procedure:
- Inspect immediately with the driver present.
- Note any damage on the carrier paperwork.
- If unable to inspect immediately, write: "Carton damage, subject to inspection".
- Inspect contents within 48 hours and report damage to the carrier.
- If packaging damage is severe, refuse shipment and notify us immediately.
Carton packaging has excessive damage to the exposed product:
- Refuse shipment
- Sign the carrier paperwork: “Carton damaged and refused.”
- Notify Modern Metal Detectors immediately.
If you have any questions, please contact us at support@modernmetaldetectors.com
Reviews
Product Q&A
QUESTIONS & ANSWERS
Have a Question?
Be the first to ask a question about this.


