1. Introduction
This manual provides detailed instructions for the operation and maintenance of your ILIHOME Endoscope Camera, Model QWE-741. This high-performance industrial endoscope is equipped with a high-definition color IPS screen and is designed for various inspection scenarios. It supports taking photos and recording videos, which can be saved to a TF memory card.

2. Safety Warnings and Precautions
WARNING! Read all safety warnings and instructions before using this product. Failure to follow the warnings and instructions may result in product damage or injury.
- The camera is not made of high-temperature resistant material. When checking car engines or other high-temperature environments, ensure the temperature inside the area drops to normal operating temperature before insertion.
- When using in an environment with sharp protrusions, exercise caution to prevent the probe's waterproof protective layer from being scratched.
- Do not violently hit the camera head, and do not pull the cable forcefully.
- This product is not suitable for people with limited physical senses or mental abilities.
- Do not let children touch and operate this equipment.
- Always use a 5V household charger that meets safety regulations to charge the device. Fast charging is not supported.
3. Package Contents
Please check the package contents upon receipt:
- Endoscope Host Unit
- Camera Cable (Length and lens type vary by model)
- USB Charging Cable
- Instruction Manual
- Accessories: Magnet, Hook, Side Mirror (Note: 3.9mm dual camera models may not include the side mirror accessory).


4. Product Overview
The endoscope camera features a robust design with a 4.3-inch IPS HD screen and intuitive controls. The camera cable is detachable and available in various configurations.
4.1. Main Unit Features
- Screen Type: 4.3-inch IPS HD color screen with 178° ultra-wide viewing angle.
- Screen Brightness: Adjustable (3 levels) for different scenarios.
- Controls: Ergonomic design with main function buttons controllable with one hand.
- Stand: Fold-out stand for hands-free desktop viewing.
- Storage: Supports TF card for photo and video recording.
- Battery: Integrated 2600mAh rechargeable battery.

4.2. Camera Probe Features
- Resolution: 1080P Full HD for ultra-clear inspection imagery.
- Lens Options: Available in Single (3.9mm, 5.5mm, 8mm), Dual (5.5mm, 8mm), Triple (8mm), and Autofocus (8mm) configurations.
- Waterproof: IP67 rated, submersible for underwater inspections.
- LED Lights: Dimmable LEDs to adapt to various dark environments.
- Cable: Rigid cable with a central steel wire for reinforcement, allowing it to hold its shape for easy positioning.



5. Setup Instructions
The ILIHOME Endoscope Camera is designed for plug-and-play functionality.
5.1. Connecting the Camera Probe
- Ensure the endoscope host unit is powered off.
- Locate the USB port on the side of the host unit.
- Align the USB connector of the camera cable with the port and gently insert it. Ensure a secure connection.

5.2. Inserting a TF Card (Micro-SD Card)
- Ensure the endoscope host unit is powered off.
- Locate the TF card slot on the side of the host unit.
- Orient the TF card correctly (confirm the front of the TF card).
- Gently insert the TF card into the slot until it clicks into place. Do not use excessive force to prevent damage to the card slot structure.
5.3. Charging the Device
Connect the USB charging cable to the charging port on the host unit and plug the other end into a 5V household charger (5V/1A recommended). The device supports use while charging.
6. Operating Instructions
6.1. Powering On/Off
Press and hold the Power button to turn the device on or off.
6.2. Adjusting LED Light Brightness
After powering on, short press the Power button to cycle through the LED brightness levels. This allows adaptation to various dark inspection environments.
6.3. Switching Camera Views (for Dual/Triple Lens models)
For dual or triple lens models, short press the "OK" button to switch between different camera views. For dual-lens models, you can switch between view A and view B. For triple-lens models, you can switch between single views (A, B, C) or combined views (AB, AC).

6.4. Taking Photos and Recording Videos
Use the dedicated Photo/Video button to capture images or start/stop video recording. Files are saved to the inserted TF card.
6.5. Zoom Function
The device supports 3x digital zoom for a better view. Use the Up/Zoom in and Down/Zoom out buttons to adjust the zoom level.

6.6. Viewing and Deleting Files
Press the Menu button and then select the gallery or video option. Press the OK button to select the file to be deleted. Long press the Menu button to delete the selected file.
6.7. Product Demonstration Video
7. Maintenance
- When not in use, keep the lens and the main unit clean and dry. Avoid contact with oil stains or other corrosive hazardous materials.
- If the device is not used for a long time, charge it at least once every 3 months to prevent irreparable damage caused by over-discharge of the battery.
- Clean the front of the camera lens with a clean alcohol cloth if the image becomes unclear.
8. Troubleshooting
8.1. Product Does Not Show Pictures or Black Screen
- Remove the camera connector and reassemble it securely.
- Check if the product has sufficient power.
- Restart the device.
8.2. Imaging Picture Not Clear
- The best imaging focal length for single, dual, and triple lens models is typically 4-10 cm for the front camera and 2-6 cm for the side camera. Adjust the distance from the object accordingly.
- For autofocus lens models, the focal length automatically adjusts for clear imaging at distances from 2cm to infinity.
- Clean the front of the camera lens with a clean alcohol cloth.
8.3. Product Charging Issues
- Ensure you are using a 5V/1A charger. Fast charging is not supported.
9. Specifications
| Feature | Detail |
|---|---|
| Brand Name | ILIHOME |
| Model Number | QWE-741 |
| Screen Type | 4.3 inch IPS |
| Lens (mm) | 8mm (also 3.9mm, 5.5mm options) |
| Wire Type | Hard Wire |
| Camera Pixel | 1920*1080 (1080P) |
| Battery Capacity | 2600mAh |
| Working Time | 3-5 hours |
| Cable Length Options | 1m, 2m, 3.5m, 5m, 10m, 15m |
| Power Input | DC 5V 500mA/1A |
| LED Light | Adjustable |
| Focal Length (Front Camera) | 4 cm - 10 cm |
| Focal Length (Side Camera) | 2 cm - 6 cm |
| Image Format | JPG |
| Video Format | MP4 |
| Working Temperature | 0°C - 45°C |
| Certification | CE, RoHS |
10. User Tips
- For optimal image clarity with fixed-focus lenses (single, dual, triple), keep the target object within the recommended focal length of 4-10 cm for the front camera and 2-6 cm for side cameras.
- The autofocus lens automatically adjusts, making it ideal for inspecting complex pipelines where distances vary.
- Remember to power off the device before inserting or removing the TF card to prevent data corruption or damage to the card slot.
- Utilize the adjustable LED lights to ensure sufficient illumination in dark inspection areas.
11. Warranty and Support
For any issues or questions regarding your ILIHOME Endoscope Camera, please refer to the official product page or contact the seller directly for support. Keep your purchase receipt for warranty claims.
A PDF version of the user manual is available for download: User Manual (PDF)