1. Introduction
Thank you for choosing the SUNPOW OT-MD08 Metal Detector Pinpointer. This device is engineered for precise and efficient detection of metal objects, offering advanced features such as 360-degree detection, multiple alert modes, and full waterproofing. Designed for both adults and children, it is an ideal tool for treasure hunting, archaeological exploration, and general metal detection in various environments.
2. Safety Information
Please read and understand all safety instructions before operating the device. Failure to follow these instructions may result in injury or damage to the product.
- Keep the device away from extreme temperatures and direct sunlight.
- Do not attempt to disassemble or modify the device, as this will void the warranty and may cause damage.
- Ensure the battery compartment is securely sealed before exposing the device to water.
- Always be aware of your surroundings when using the pinpointer outdoors to avoid hazards.
- Test the device in a safe, known area before using it for critical detection tasks.
3. Package Contents
Verify that all items are present in your package:
- SUNPOW OT-MD08 Metal Detector Pinpointer
- 9V Battery
- Holster
- Lanyard
- Carry Bag
- User Manual

Image: The SUNPOW OT-MD08 pinpointer, along with its included holster, lanyard, carry bag, and a 9V battery.
4. Product Overview
Familiarize yourself with the main components of your SUNPOW OT-MD08 pinpointer:

Image: A detailed diagram highlighting the key features of the pinpointer, including the LED screen, battery cover, one-touch switch, LED flashlight, portable chain buckle, 360° scan capability, and pinpoint tip.
- LED Screen: Displays signal strength and battery level.
- One-Touch Switch: Controls power and switches between detection modes.
- LED Flashlight: Illuminates the detection area in low light conditions.
- Battery Cover: Secures the 9V battery.
- Pinpoint Tip: The primary detection area for precise targeting.
- Portable Chain Buckle: For attaching a lanyard or securing the device.
5. Setup
5.1 Battery Installation
- Unscrew the battery cover located at the top of the pinpointer.
- Insert the provided 9V battery, ensuring correct polarity (+ and -).
- Securely screw the battery cover back on until it is hand-tight. Ensure the O-ring seal is properly seated for waterproofing.
Video: An official product video demonstrating the unboxing and initial setup of the SUNPOW OT-MD08 metal detector, including battery installation.
6. Operating Instructions
6.1 Power On/Off
Press and hold the One-Touch Switch for approximately 2 seconds to power the device on or off.
6.2 Detection Modes
The OT-MD08 offers three distinct detection modes. Press the One-Touch Switch briefly to cycle through them:
- Mode 1: Sound & Vibration (Default) - The device will emit an audible beep and vibrate when metal is detected.
- Mode 2: Sound Only - The device will only emit an audible beep when metal is detected.
- Mode 3: Vibration Only - The device will only vibrate when metal is detected.

Image: A user demonstrating the Sound and Vibration mode, where the device provides both audio and tactile feedback upon metal detection.

Image: A user demonstrating the Sound mode, where the device provides only audio feedback upon metal detection.

Image: A user demonstrating the Vibration mode, where the device provides only tactile feedback upon metal detection.
6.3 Metal Detection and Indication
When metal is detected, the pinpointer provides four types of feedback:
- Audible Beep: Frequency increases as you get closer to the target.
- Vibration: Intensity increases as you get closer to the target.
- LED Light: The LED light will strobe.
- LCD Screen: Signal strength will be displayed on the LCD screen.

Image: Visual representation of the four types of feedback provided by the pinpointer: sound, vibration, light, and screen display.
6.4 360° Detection and Depth
The pinpointer features 360° side-scan detection, allowing for quick and accurate location of targets. It can detect objects up to 4.5 inches underground.

Image: An illustration demonstrating the pinpointer's ability to detect metal objects 360 degrees around its tip and up to 4.5 inches deep in the ground.
Video: An official product video showing the SUNPOW OT-MD08 pinpointer being used to detect objects in a backyard setting, demonstrating its practical application.
7. Maintenance
7.1 Cleaning
After each use, especially in wet or dirty conditions, clean the pinpointer with a damp cloth. Do not use abrasive cleaners or solvents.
7.2 Waterproofing (IP68)
The OT-MD08 is IP68 fully waterproof, making it suitable for use in lakes, rivers, ponds, and oceans. Always ensure the battery cover is tightly sealed before submerging the device.

Image: The SUNPOW OT-MD08 pinpointer partially submerged in water, illustrating its IP68 waterproof capability for use in aquatic environments.
7.3 Storage
Store the pinpointer in a cool, dry place when not in use. If storing for extended periods, remove the battery to prevent leakage.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not power on. | Battery is dead or incorrectly installed. | Replace battery or re-install with correct polarity. |
| No detection or weak signal. | Battery low; target too deep or too small; interference. | Replace battery; ensure target is within detection range; move away from other electronic devices. |
| False signals or erratic behavior. | Electromagnetic interference; device too close to large metal objects. | Move to a different location; ensure no other metal detectors are operating nearby. |
| Water inside battery compartment. | Battery cover not sealed properly. | Immediately remove battery, dry compartment thoroughly, ensure O-ring is clean and properly seated before re-sealing. |
9. Specifications
- Brand: SUNPOW
- Model: OT-MD08
- Color: Yellow
- Power Source: Battery Powered (9V)
- Material: Metal
- Item Weight: 200 Grams (7.1 ounces)
- Product Dimensions: 10.83"L x 2.36"W x 2.36"H
- International Protection Rating: IP68 (Fully Waterproof)
- Operating Frequency: 7.69 KHz
- Display Type: LCD
- Detection Depth: Up to 4.5 inches (for a quarter coin)
- Detection Modes: Sound & Vibration, Sound Only, Vibration Only
10. Warranty
Each SUNPOW metal detector pinpointer is backed by a Lifetime Warranty System. This warranty covers defects in materials and workmanship under normal use. For warranty claims or inquiries, please refer to the support section.
11. Support
For technical assistance, troubleshooting, or warranty service, please contact SUNPOW customer support. You can typically find contact information on the official SUNPOW website or through the retailer where you purchased the product.
Online Resources: Visit the official SUNPOW website for FAQs, product updates, and additional support materials.
Customer Service Email: Refer to your product packaging or the official SUNPOW website for the most current contact email.





