1. Product Overview
The FOXWELL Elite Y406D Dual Lens Articulating Borescope is a professional inspection tool designed for detailed visual examination in hard-to-reach areas. It features a dual-lens probe with 220° articulation, an HD IPS display, and robust construction for various industrial and automotive applications.

Image 1.1: Overview of the FOXWELL Elite Y406D Dual Lens Articulating Borescope and its primary features.
2. Package Contents
Verify that all items are present in the package:
- 1x FOXWELL Elite Y406D Articulating Borescope Unit
- 1x 2-in-1 USB-C Cable (for charging and data transfer)
- 1x User's Manual
- 1x Hook Tip Accessory
- 1x Magnet Tip Accessory
- 1x 32GB MicroSD Card (pre-installed or included separately)
- 1x Carrying Case Bag

Image 2.1: The complete package contents, including the borescope unit, accessories, and carrying case.
3. Setup
3.1 Charging the Device
Before first use, fully charge the borescope's built-in rechargeable battery using the provided USB-C cable. Connect the USB-C end to the device and the USB-A end to a compatible USB power adapter (not included) or computer port. The charging indicator will show progress.
3.2 Inserting/Replacing the MicroSD Card
The device comes with a 32GB MicroSD card for storage. Locate the MicroSD card slot on the side of the unit. Gently insert the card until it clicks into place. To remove, press the card inward until it springs out.
3.3 Attaching Accessories
Optional hook and magnet tips can be screwed onto the end of the probe for retrieving small items from tight spaces. Ensure they are securely fastened before use.

Image 3.1: Attaching the magnetic tip to the borescope probe for retrieving objects.
4. Operating Instructions
4.1 Power On/Off
Press and hold the power button (usually marked with a power symbol) to turn the device on or off. The HD IPS display will illuminate upon startup.
4.2 Navigating the Display and Menus
The device features an intuitive interface with buttons for navigation, settings, and media capture. Refer to the on-screen prompts for specific menu options.

Image 4.1: The borescope's display and controls for capturing images and recording video.
4.3 Probe Articulation
The 0.25-inch (6.5mm) ultra-slim probe offers 220° 2-way articulation. Use the symmetrical control knob on the handle to precisely steer the camera tip up, down, and around obstacles. This allows for comprehensive inspection without extensive disassembly.

Image 4.2: The 220° 2-way articulating probe in action, showing its flexibility.
4.4 Dual Lens Functionality
The borescope features dual lenses (front and side). You can instantly switch between front view, side view, or a split-screen dual view to get a complete perspective of the inspection area. This is particularly useful for examining complex structures like engine cylinders or pipes.

Image 4.3: The dual-lens feature allows switching between front, side, and split-screen views for comprehensive inspection.
4.5 Adjustable LED Lights
The probe is equipped with adjustable LED lights to illuminate dark inspection areas. Cycle through different brightness levels (Off, Low, Medium, High) to optimize visibility and reduce glare on reflective surfaces.

Image 4.4: Adjustable LED lights provide optimal illumination for various inspection conditions.
4.6 Zoom Function
Utilize the 2X and 4X digital zoom levels to magnify details without moving the probe. This helps in identifying subtle cracks, corrosion, or other small issues.

Image 4.5: The 4X zoom feature allows for closer inspection of fine details.
4.7 Capturing Photos and Videos
Press the dedicated capture button to take HD photos or record videos. The captured media is saved directly to the internal 32GB MicroSD card. No Wi-Fi or external apps are required for this function.
5. Maintenance
5.1 Cleaning the Probe
The borescope probe is IP67 waterproof, making it resistant to water, dust, and oil. After use, especially in dirty or oily environments, gently wipe the probe with a soft, damp cloth. Ensure the lens is clean for optimal image clarity.
5.2 Overheat Protection
The device includes a smart heat protection system that automatically shuts down the unit if the probe temperature exceeds 70 °C (158 °F) to prevent damage. Allow the device to cool down before resuming operation in high-temperature environments.

Image 5.1: The borescope's overheat protection system ensures device longevity by shutting down at 70°C (158°F).
5.3 Storage
Store the borescope and its accessories in the provided carrying case to protect them from dust, impacts, and environmental factors when not in use.
6. Troubleshooting
- No Power: Ensure the battery is fully charged. If the device does not turn on, try connecting it to a power source.
- Poor Image Quality: Check if the camera lens is clean. Adjust the LED light intensity to prevent overexposure or underexposure. Ensure the probe is within the optimal focal range.
- Probe Overheating: If the device shuts down due to overheating, allow it to cool down for several minutes before resuming operation. Avoid prolonged use in extremely hot environments.
- Unable to Capture Media: Verify that the 32GB MicroSD card is correctly inserted and has sufficient free space.
- Device Unresponsive: Locate the reset button (if available, often a small pinhole) and use a thin object to press it to restart the device.
7. Specifications
| Feature | Specification |
|---|---|
| Model | Y406D |
| Probe Diameter | 0.25 inches (6.5mm) Ultra-Slim |
| Probe Length | 5.3 feet (1.6m) |
| Articulation | 220° 2-Way Mechanical |
| Lenses | Dual Lens (Front & Side) |
| Display | HD IPS Display |
| Video Resolution | 1920x1080p (FHD) |
| Zoom | 2X, 4X Digital Zoom |
| Lighting | Adjustable LED Lights |
| Waterproof Rating | IP67 (Probe) |
| Storage | 32GB MicroSD Card (included) |
| Connectivity | USB-C (Charging & Data Transfer) |
| Overheat Protection | Automatic shut-down above 70 °C (158 °F) |
| Battery | 1 AAA battery required (included) - Note: This likely refers to an internal rechargeable battery, not a replaceable AAA. |
| Item Weight | 2.29 pounds |
| Package Dimensions | 12.52 x 8.86 x 2.64 inches |
8. Warranty and Support
FOXWELL provides comprehensive support for its products:
- Lifetime Technical Support: Assistance is available for the lifespan of your product.
- 1 Year Quality Backup: The product is covered by a 1-year quality assurance period.
- 30-Day Return/Replace: Refer to your purchase platform's return policy for details on returns or replacements within 30 days of purchase.
- 24/7 Customer Support: Contact customer service for any inquiries or issues.





