1. Introduction
The TOMLOV TM4K Max is a high-performance 4K digital microscope designed for detailed observation, soldering, electronics repair, and coin inspection. Featuring a Sony IMX sensor, 4K UHD video recording, 52MP still image capture, and a versatile 360° spin arm stand, it provides exceptional clarity and flexibility for various applications. This manual provides essential information for setting up, operating, and maintaining your microscope.
2. Package Contents
Please verify that all items listed below are included in your package:
- 1x TM4K Max 4K Digital Microscope
- 1x Spin Boom Arm Stand
- 1x Large Base
- 1x Ring Light
- 1x 64GB Micro SD Card
- 1x Light Barrier
- 2x USB Cable
- 1x 5V Adaptor
- 1x HDMI Cable
- 1x Controller
- 1x User Manual (this document)
3. Setup Guide
3.1 Assembling the Stand
- Attach the Spin Boom Arm Stand to the Large Base. Ensure it is securely fastened.
- Mount the microscope unit onto the Spin Boom Arm Stand. The stand allows for 360° rotation, horizontal adjustment, and vertical movement.
- Utilize the 3.5-inch fine-tuning stand for precise height and angle adjustments during observation or repair tasks.



3.2 Connecting the Ring Light
Attach the Ring Light to the microscope lens. Connect its power cable to one of the USB ports on the microscope or a suitable USB power source. The ring light provides uniform illumination for your specimens.

3.3 Power Connection
Connect the microscope to the 5V Adaptor using one of the provided USB Cables. Plug the adaptor into a standard power outlet.
3.4 Inserting the Micro SD Card
Locate the Micro SD card slot on the microscope unit. Insert the included 64GB Micro SD Card until it clicks into place. This card is essential for storing captured images and videos.
3.5 External Display Connection (Optional)
For a larger view, connect the microscope to an external display (monitor, TV) using the provided HDMI Cable. The microscope supports real-time HDMI output.
3.6 Remote Controller
The remote controller allows for convenient operation without touching the microscope, reducing vibrations and ensuring stable views. Ensure batteries are inserted correctly (if applicable) and the controller is paired with the microscope.
4. Operating Instructions
4.1 Powering On/Off
Press and hold the 'POWER' button on the microscope unit or remote controller to turn the device on or off.
4.2 Adjusting Magnification and Focus
The microscope offers a magnification range from 2X to 2000X. Rotate the focus knob on the microscope unit to achieve a clear image. Adjust the height of the microscope head on the stand for broader or closer views. The 3.5-inch fine-tuning stand can be used for micro-adjustments.
4.3 Using the Ring Light
The Ring Light provides adjustable brightness. Use the control knob on the light unit to increase or decrease illumination as needed for optimal viewing and to minimize reflections.
4.4 Capturing Images and Recording Videos
Use the dedicated buttons on the microscope unit or the remote controller to capture 52MP still images or record 4K UHD (3840x2160P @ 30fps) videos. All media will be saved to the inserted 64GB Micro SD Card.
4.5 Tri-Screen Real-time Display
The microscope supports simultaneous output to its integrated 10.1" IPS screen, an external HDMI display, and a connected computer via USB. This allows for real-time monitoring on up to three screens, enhancing collaborative work or detailed analysis.
4.6 Thumbnail and Locate Function
When using digital magnification, the thumbnail feature provides a smaller overview of the entire specimen, with a highlighted box indicating the currently zoomed area. This helps in precisely navigating and identifying specific regions for detailed exploration.
5. Maintenance
5.1 Cleaning
- Lens: Use a soft, lint-free cloth specifically designed for optical lenses. For stubborn smudges, a small amount of lens cleaning solution can be applied to the cloth (not directly to the lens).
- Screen: Wipe the 10.1" IPS screen with a soft, dry microfiber cloth. Avoid abrasive cleaners.
- Body: Clean the microscope body and stand with a slightly damp cloth. Do not use harsh chemicals or solvents.
5.2 Storage
When not in use, store the microscope in a clean, dry, and dust-free environment. It is recommended to cover the lens with its protective cap to prevent dust accumulation.
5.3 Battery Care
The microscope includes a battery. For optimal battery life, avoid fully discharging the battery frequently. If storing for an extended period, charge the battery to approximately 50% and recharge every few months.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Microscope does not power on | No power, discharged battery, faulty adapter/cable | Ensure power adapter is connected and working. Charge the battery. Try a different USB cable or power source. |
| Image is blurry or out of focus | Incorrect focus, improper working distance, dirty lens | Adjust the focus knob. Adjust the height of the microscope head. Clean the lens. |
| No image on external HDMI display | Loose HDMI cable, incorrect input selected on display | Check HDMI cable connections. Ensure the external display is set to the correct HDMI input. |
| Cannot save images/videos | No SD card, full SD card, corrupted SD card | Insert a 64GB Micro SD card. Delete unnecessary files or format the SD card (this will erase all data). |
| Ring Light not working | Loose connection, faulty light unit | Check the USB connection for the ring light. Ensure the brightness knob is turned up. |
For further assistance, please refer to the full user manual or contact customer support.
7. Specifications
| Feature | Detail |
|---|---|
| Model Number | TM4K Max |
| Magnification Ratio | 2X - 2000X (Digital) |
| Video Resolution | 4K UHD (3840x2160P) @ 30fps |
| Still Image Resolution | 52MP (9600x5400P) |
| Sensor | Sony IMX458 |
| Display Screen | 10.1" IPS, 1280x800P, 100% SRGB, 99% RGB, 400 HDR, 99% NTSC |
| Stand Type | 360° Spin Arm Stand with 13-inch pillar and 3.5-inch fine-tuning stand |
| Base Dimensions | 15'' x 9.8'' |
| Storage | Supports Micro SD Card (64GB included) |
| Output Ports | HDMI, USB |
| Illumination | Brightness Ring Light (30000-35000LUX, 6500K-7000K) |
| Features | High Definition, Handheld, Portable, Digital, Remote Control |
| Certification | CE |
| Battery | Included |
8. User Tips
- Display Size: The integrated display is indeed 10.1 inches, providing a clear and expansive view for your work.
- Optimal Lighting: Always adjust the Ring Light brightness to eliminate shadows and glare, ensuring the best possible image quality for both observation and recording.
- Stable Surface: Place the microscope on a stable, level surface to prevent vibrations that could affect image clarity, especially at higher magnifications.
- Remote Control Use: Utilize the remote controller for capturing images and videos to avoid any movement of the microscope unit, which can cause blurriness.
- Working Distance: Experiment with the microscope's height and the fine-tuning stand to find the optimal working distance for different magnifications and tasks, such as soldering.
9. Warranty and Support
For warranty information, technical support, or service inquiries, please contact TOMLOV Official Store customer service. Keep your purchase receipt as proof of purchase.





