1. Safety Information
Please read and understand all safety instructions before operating the Nokta Anfibio Multi Metal Detector. Failure to follow these guidelines may result in injury or damage to the device.
- Always follow local regulations and safety guidelines when using this metal detector.
- Be cautious when handling found objects, as they may be sharp or hazardous.
- Do not use this metal detector underwater unless it is specifically designed for underwater use and you are a competent swimmer. The Anfibio Multi is designed for underwater use, but user competence is essential.
- Always supervise children when they are using this metal detector.
- Ensure the battery compartment is securely sealed before any underwater operation.
2. Package Contents
Verify that all items are present in your package:
- Nokta Anfibio Multi Control Unit
- 11-inch DD Search Coil
- Wireless Headphones
- Shaft Assembly (Upper, Middle, Lower)
- Charging Cable
- User Manual
- Coil Mounting Hardware
3. Product Overview
The Nokta Anfibio Multi is a versatile metal detector designed for various terrains, including land and underwater environments. It operates on multiple VLF frequencies (5kHz, 14kHz, 20kHz) to optimize detection for different targets and conditions.

Figure 3.1: Fully assembled Nokta Anfibio Multi Metal Detector, showcasing the control unit, shaft, and 11-inch DD search coil.
3.1 Control Panel
The control panel provides access to all detector settings and displays target information. Familiarize yourself with its layout for efficient operation.

Figure 3.2: Detailed view of the Anfibio Multi control panel, showing the LCD screen, mode selection, settings, and target ID display.
- LCD Display: Shows target ID, depth, battery status, current settings, and search mode.
- Mode Buttons: For selecting various search modes (e.g., GEN, 2 TONE, 3 TONE, 5 TONE, 99 TONE, BEACH, DEEP, CACHE).
- Settings Buttons: Access parameters like Gain, Disc, Notch, Tone Break, Threshold, ISAT.
- Options Buttons: Adjust Frequency, Volume, Brightness, Vibrate, ID Depth, Tracking, FQ. Shift, FD/Save, Wireless.
- PP (Pinpoint) Button: For precise target location.
- GB (Ground Balance) Button: For manual or automatic ground balancing.
- ON/OFF Button: Powers the detector on or off.
4. Setup
4.1 Assembly
- Attach the lower shaft to the middle shaft, ensuring the spring clips engage.
- Mount the 11-inch DD search coil to the lower shaft using the provided non-metallic bolt and washers. Do not overtighten.
- Wrap the coil cable securely around the lower and middle shafts, leaving enough slack for adjustment, and plug the connector into the control unit. Ensure the connection is tight and waterproof.
- Slide the control unit onto the upper shaft and secure it with the locking mechanism.
- Adjust the shaft length to a comfortable position for your height, ensuring the coil is parallel to the ground when sweeping.
4.2 Charging the Battery
The Anfibio Multi is equipped with a built-in Lithium Polymer battery. Before first use, fully charge the battery.
- Locate the charging port on the control unit.
- Connect the provided charging cable to the port and a suitable USB power adapter (not included).
- The charging indicator on the display will show the charging status. A full charge typically takes several hours.
- Disconnect the charger once the battery is fully charged. Ensure the charging port cover is securely closed for waterproof integrity.
4.3 Attaching Wireless Headphones
The detector comes with wireless headphones for clear audio feedback.
- Ensure both the detector and headphones are powered on.
- Access the 'Wireless' option in the detector's settings menu.
- Follow the on-screen prompts to pair the headphones. Once paired, audio will be transmitted wirelessly.
5. Operating Instructions
5.1 Power On/Off
- To power on, press and hold the ON/OFF button until the display illuminates.
- To power off, press and hold the ON/OFF button until the display shuts down.
5.2 Basic Operation
After powering on, the detector will typically start in the last used mode. It is recommended to perform a ground balance before searching.
- Frequency Selection: The Anfibio Multi offers 5kHz, 14kHz, and 20kHz VLF frequencies. Access the 'Frequency' option in the settings to select the optimal frequency for your target and ground conditions. Lower frequencies are generally better for deeper, larger targets, while higher frequencies are better for smaller, shallower targets and low-conductivity metals.
- Ground Balance (GB): Essential for stable operation and depth. Hold the GB button and pump the coil up and down over the ground until a stable ground balance value is achieved. Release the button.
- Sensitivity (Gain): Adjust the 'Gain' setting to control the detector's sensitivity. Higher sensitivity increases depth but can also increase ground noise. Start with a moderate setting and increase as conditions allow.
- Discrimination (Disc): Use the 'Disc' setting to eliminate unwanted targets (e.g., iron). Adjust the discrimination level to reject specific target IDs.
- Pinpointing (PP): Once a target is detected, press the PP button to enter pinpoint mode. Move the coil slowly over the target area to locate its exact position. The audio pitch and visual indicator will help narrow down the location.
5.3 Search Modes
The Anfibio Multi features several search modes, each optimized for different conditions:
- GEN (All Metal): Detects all metals, offering maximum depth.
- 2 TONE / 3 TONE / 5 TONE / 99 TONE: Multi-tone discrimination modes, providing different audio responses for various target types.
- BEACH: Optimized for wet sand and saltwater environments, reducing false signals from mineralization.
- DEEP: Designed for maximum depth detection in stable ground conditions.
- CACHE: Specialized mode for detecting larger, deeper targets.
5.4 Underwater Use
The Anfibio Multi is fully submersible up to 5 meters (16.4 feet). Ensure all connections are secure and waterproof before entering water.
- Before submerging, double-check that the coil cable connector is tightly screwed and the charging port cover is firmly sealed.
- Use the BEACH mode for optimal performance in saltwater environments.
- The wireless headphones are also waterproof; ensure they are properly sealed if submerging.
- Be aware that audio may be muffled or difficult to hear underwater without waterproof headphones.
6. Maintenance
Proper maintenance ensures the longevity and performance of your detector.
- Cleaning: After each use, especially in saltwater or dirty conditions, rinse the detector (excluding the control unit's charging port if not sealed) with fresh water. Wipe down all components with a soft, damp cloth. Do not use abrasive cleaners or solvents.
- Storage: Store the detector in a cool, dry place away from direct sunlight and extreme temperatures. If storing for extended periods, ensure the battery is partially charged (around 50%) to preserve battery health.
- Battery Care: Avoid fully discharging the battery frequently. Recharge as needed. If the detector will not be used for several months, charge it periodically to prevent deep discharge.
- Coil Protection: Consider using a coil cover to protect the search coil from scratches and impacts.
7. Troubleshooting
If you encounter issues, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No power | Battery discharged; Power button not pressed correctly | Charge the battery; Press and hold the ON/OFF button firmly. |
| Excessive false signals | Improper ground balance; High sensitivity; Electromagnetic interference | Perform ground balance; Reduce sensitivity (Gain); Move away from power lines or other electronics; Use Frequency Shift. |
| No audio from headphones | Headphones not paired; Headphones discharged; Volume too low | Re-pair headphones; Charge headphones; Increase detector volume. |
| Poor depth detection | Incorrect ground balance; Low sensitivity; Wrong frequency for target | Perform ground balance; Increase sensitivity (Gain); Try a lower frequency (e.g., 5kHz) for deeper targets. |
| Detector not waterproof | Charging port open; Coil cable not sealed | Ensure charging port cover is firmly closed; Tighten coil cable connector securely. |
8. Specifications
Key technical specifications for the Nokta Anfibio Multi Metal Detector:
| Feature | Specification |
|---|---|
| Brand | Nokta Makro |
| Model Number | Anfibio Multi |
| Operating Frequencies | 5 kHz, 14 kHz, 20 kHz (VLF) |
| Search Coil | 11-inch DD (Double-D) |
| Waterproof Rating | IP68 (Fully submersible up to 5 meters / 16.4 feet) |
| Ground Balance | Automatic, Manual, Tracking |
| Battery | 1 Lithium Polymer (included) |
| Item Weight | 3.74 pounds (1.7 Kilograms) |
| Adjustable Length | Yes, up to 132 Centimeters (52 inches) |
| Product Dimensions | 23.62 x 5.91 x 11.81 inches |
| Power Source | AC/DC |
| Material | Metal |
9. Warranty and Support
For detailed warranty information and technical support, please refer to the official Nokta Makro website or contact their customer service directly. Keep your proof of purchase for warranty claims.
- Online Resources: Visit the Nokta Makro official website for FAQs, software updates, and additional product documentation.
- Customer Service: Contact information for support can typically be found on the manufacturer's website or in the included warranty card.







