1. Introduction
The TOMLOV DM4 Lite Digital Microscope is a versatile and portable imaging device designed for detailed observation of various objects, from coins and stamps to electronic components and biological specimens. Featuring a 4.3-inch LCD screen, 50X-1000X magnification, and 720P HD digital imaging, it is suitable for educational purposes, hobbyists, and professionals alike. This manual provides essential information for the proper setup, operation, and maintenance of your digital microscope.

2. Package Contents
Please check the box to ensure all items are present:
- TOMLOV DM4 Lite Digital Microscope Unit
- Adjustable Metal Stand
- USB Cable
- 32GB Micro SD Card (pre-installed or included separately)
- User Manual (this document)
3. Setup and Assembly
Follow these steps to assemble your digital microscope:
- Attach the Stand Base: Place the microscope unit onto the stand base.
- Secure the Holder: Insert the adjustable holder into the base and tighten any securing screws or knobs.
- Mount the Microscope: Slide the microscope unit onto the adjustable holder. Ensure it is securely fastened.
- Power On: Press and hold the power button (usually marked with a power symbol) to turn on the device.

4. Operating Instructions
4.1 Basic Observation
- Place Specimen: Position the object you wish to observe on the base plate directly under the microscope lens.
- Adjust Object Distance: Rotate the knob on the stand to raise or lower the microscope unit, adjusting the distance between the camera and the object.
- Focus: Use the magnification wheel on the microscope body to achieve a clear image on the 4.3-inch LCD screen.
- Adjust Lighting: Utilize the 8 LED fill lights to illuminate your specimen. Control the brightness using the light control knob (if available) or buttons on the unit.

4.2 Magnification Guidance
The microscope offers a magnification range of 50X to 1000X. The actual magnification displayed depends on the screen size and the distance between the camera and the objective lens.
- Approx. 50X Magnification: Raise the microscope holder to its highest position. Scroll the magnification wheel until the clearest view appears on the screen.
- Approx. 1000X Magnification: Lower the microscope holder to the middle of the stand. Scroll the magnification wheel until the clearest view appears on the screen.

4.3 Image Capturing and Video Recording
The microscope supports capturing still images and recording videos directly to the included 32GB Micro SD card.
- Switch Modes: Press and hold the "Menu" button for 3 seconds to cycle between "Video", "Photo", and "File" modes.
- Capture/Record: In Photo mode, press the "OK" button to take a picture. In Video mode, press "OK" to start/stop recording.
4.4 PC Connection (Windows Only)
You can connect the microscope to a Windows computer to view images on a larger screen and capture/record directly from your PC.
- Set Microscope to PC Camera Mode: On the microscope, navigate to Menu > Setup > USB > PC Camera.
- Connect to PC: Use the provided USB cable to connect the microscope to your Windows computer.
- Launch Camera Application: Open the Windows Camera application (or other compatible webcam software) on your PC.
- Adjust View: Use the microscope's knobs to zoom in/out and focus as needed.
Note: This microscope is not compatible with iMac/MacBook devices for PC connection.
4.5 Portable Use
The microscope features a built-in 2000mAh battery, allowing for portable use without the stand. It can also be charged via a power bank, making it ideal for outdoor exploration.

5. Care and Maintenance
- Cleaning: Use a soft, dry cloth to clean the microscope body. For the lens, use a specialized lens cleaning cloth and solution. Avoid abrasive materials.
- Storage: Store the microscope in a dry, dust-free environment when not in use.
- Battery: For optimal battery life, avoid fully discharging the battery frequently. Charge it regularly, especially if storing for extended periods.
- Handling: Handle the microscope with care to prevent drops or impacts, which could damage internal components or the screen.
6. Troubleshooting
- No image on screen / Screen is black:
- Ensure the microscope is powered on and fully charged. Check if the lens cap is removed. Adjust the LED lights for proper illumination.
- Image is blurry:
- Adjust the focus wheel on the microscope body. Also, adjust the distance between the microscope lens and the object using the stand's height adjustment knob.
- Cannot connect to PC:
- Ensure the microscope is set to "PC Camera" mode (Menu > Setup > USB > PC Camera). Verify the USB cable is securely connected to both the microscope and a Windows PC. Remember, Mac devices are not compatible.
- Cannot capture images/videos:
- Ensure a 32GB Micro SD card is inserted correctly and has sufficient free space. Check that the microscope is in "Photo" or "Video" mode by pressing and holding the "Menu" button.
7. Specifications
| Feature | Detail |
|---|---|
| Model Number | DM4 Lite |
| Brand Name | TOMLOV |
| Magnification Ratio | 50X - 1000X |
| Display Screen | 4.3-inch LCD |
| Imaging Resolution | 720P HD |
| Storage | Supports Micro SD card (32GB included) |
| Illumination | 8 LED Fill Lights |
| Battery Capacity | 2000mAh |
| PC Connection | Windows compatible (USB) |
| Dimensions | 8.58 x 6.97 x 3.35 inches |
| Weight | 0.76 pounds |
| Certification | CE |
8. User Tips
- For coin collectors, be aware that at higher magnifications, the microscope will show partial details of coins, not the entire coin. This allows for closer inspection of specific features.
- When observing, experiment with both the stand's height adjustment and the microscope's focus wheel to find the optimal clarity and magnification for your specimen.
- The solid metal stand is durable and provides a stable platform, making it suitable for delicate tasks like micro soldering.
9. Warranty and Support
For any product inquiries, technical support, or warranty claims, please contact the TOMLOV Official Store customer service. Keep your purchase receipt as proof of purchase.





