1. Introduction
The SUNPOW OT-MD15 is a high-performance rechargeable metal detector designed for adults, offering advanced features for efficient treasure hunting and metal detection. It features a 28 cm (11-inch) Double D search coil, a long-lasting 35-hour lithium battery, 10 sensitivity levels, 4 distinct search modes, and the ability to identify 7 types of metals. Its IP68 waterproof design ensures durability in various outdoor conditions.
2. Safety Information
- Always operate the metal detector responsibly and respect private property.
- Be aware of your surroundings to avoid accidents, especially near roads, construction sites, or hazardous areas.
- The control box is not waterproof. Ensure it remains dry to prevent damage.
- Do not attempt to open or modify the device, as this may void the warranty and cause malfunction.
- Keep the device away from extreme temperatures and direct sunlight for prolonged periods.
- When digging, exercise caution to avoid damaging underground cables, pipes, or other utilities.
3. Package Contents
The SUNPOW OT-MD15 metal detector kit includes everything needed for your adventures:
- SUNPOW OT-MD15 Metal Detector unit
- Metal shovel
- Waterproof backpack
- Noise-canceling headphones
- USB-C charging cable
Figure 3.1: Included accessories with the SUNPOW OT-MD15 metal detector.
4. Product Overview
The SUNPOW OT-MD15 features a robust design with an adjustable shaft and a powerful Double D search coil.
4.1 Key Components
- Control Box: Houses the LCD screen, control buttons, and battery. (Note: Not waterproof)
- Adjustable Shaft: Telescopic design for length adjustment (48 cm to 129 cm).
- Armrest: Provides comfort and stability during use.
- Double D Search Coil: 28 cm (11 inches) in diameter, IP68 waterproof for underwater detection.
- Grip: Non-slip handle for secure holding.
Figure 4.1: The 28 cm (11-inch) Double D waterproof search coil.
Figure 4.2: Overview of the metal detector's features including adjustable rod and display.
5. Setup
5.1 Assembly
The SUNPOW OT-MD15 is designed for quick and tool-free assembly, typically within 30 seconds.
- Attach the search coil to the lower stem.
- Connect the lower stem to the middle stem.
- Slide the control box onto the upper stem and secure it.
- Adjust the telescopic shaft to your preferred length (48 cm to 129 cm) using the quick-lock system.
- Wrap the coil cable securely around the shaft, ensuring it does not interfere with movement.
Figure 5.1: Adjustable shaft for comfortable use.
5.2 Charging the Battery
The device is equipped with a 2500 mAh Li-ion battery, providing up to 35 hours of operation. It supports fast charging via USB-C.
- Locate the USB-C charging port on the control box.
- Connect the provided USB-C cable to the port and plug the other end into a compatible USB power adapter (not included).
- A full charge takes approximately 5 hours. The display will indicate charging status.
- The battery includes overcharge and overheat protection.
Figure 5.2: USB-C charging port and battery life.
6. Operating Instructions
The SUNPOW OT-MD15 offers 4 specialized search modes and 10 sensitivity levels for optimal detection.
6.1 Power On/Off
Press and hold the power button on the control box to turn the detector on or off.
6.2 Adjusting Sensitivity
Use the sensitivity adjustment buttons on the control panel to select one of the 10 available sensitivity levels. Higher sensitivity increases detection depth but may also increase false signals in mineralized ground.
6.3 Search Modes
The detector features four distinct modes, optimized for various detection scenarios:
- All-Metal Mode: Detects all types of metals without discrimination. Ideal for finding all metal objects.
- DISC (Discrimination) Mode: Allows you to eliminate unwanted metal targets sequentially, such as iron or aluminum, to focus on more valuable items.
- NOTCH Mode: Provides free discrimination between 4 categories of metals, allowing you to ignore specific types of junk metal.
- PINPOINT (PP) Mode: Used to precisely locate the exact position of a detected target, reducing the need for extensive digging.
Figure 6.1: Overview of the four search modes.
Figure 6.2: All-Metal Mode display.
Figure 6.3: Discrimination Mode display.
Figure 6.4: Notch Mode display.
Figure 6.5: Pinpoint Mode display.
6.4 Metal Identification
The LCD screen provides instant identification of 7 types of metals, displaying numerical target values to help you determine the type of metal detected before digging.
Figure 6.6: Numerical target value indication for 7 metal types.
6.5 Detection Depth
The advanced Double D search coil and improved processor allow for real detection up to 25 cm (10 inches) deep, even in areas with strong interference, providing clearer signals.
Figure 6.7: Detection depth illustration.
7. Maintenance
7.1 Cleaning
- After each use, especially in sandy or muddy conditions, clean the search coil with fresh water.
- Wipe the control box and shaft with a damp cloth. Ensure the control box remains dry.
- Do not use abrasive cleaners or solvents, as they may damage the device.
7.2 Storage
- Store the metal detector in a cool, dry place when not in use.
- If storing for an extended period, ensure the battery is partially charged (around 50%) to prolong its lifespan.
- Disassemble the detector if necessary for compact storage in the provided backpack.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No power | Battery is depleted | Charge the battery using the USB-C cable. |
| False signals / erratic behavior | High sensitivity in mineralized ground; Electromagnetic interference; Loose coil cable. | Reduce sensitivity; Move away from power lines or other electronic devices; Ensure coil cable is tightly wrapped and connected. |
| Poor detection depth | Low sensitivity setting; Highly mineralized soil. | Increase sensitivity; Perform ground balance if available (check manual for specific model features); Sweep slower. |
| No sound from headphones | Headphones not connected properly; Volume too low; Faulty headphones. | Ensure headphones are fully plugged in; Increase volume; Test with another pair of headphones. |
9. Specifications
- Model Number: OT-MD15
- Product Dimensions: 24 x 24 x 136 cm (L x W x H)
- Item Weight: 1.45 Kilograms
- Material: ABS, Metal
- Power Source: Battery Powered (1 Lithium Polymer battery included)
- Battery Life: 35 hours
- Charging Time: Approximately 5 hours (via USB-C)
- Search Coil: 28 cm (11 inches) Double D, IP68 Waterproof
- Sensitivity Levels: 10
- Search Modes: All-Metal, DISC, NOTCH, PINPOINT
- Metal Identification: 7 types with numerical target values
- Operating Temperature: 0°C to 45°C
- Country of Origin: China
10. Warranty Information
SUNPOW products are designed for reliability and performance. Please refer to the warranty card included in your package for specific warranty terms and conditions. Typically, products are covered against manufacturing defects for a period specified at the time of purchase. Keep your proof of purchase for warranty claims.
11. Support
For technical assistance, troubleshooting beyond this manual, or warranty inquiries, please contact SUNPOW customer support through the retailer where the product was purchased or visit the official SUNPOW website for contact information.
Online Resources:
- SUNPOW Official Website: Visit SUNPOW Store
