MD21 Infrared Mini Camera User Manual

1. Product Overview

The MD21 Infrared Mini Camera is a compact and versatile device designed for various recording needs. It features 1080P HD video recording, night vision, motion detection, and loop recording capabilities. Its small size and magnetic design allow for discreet placement and easy portability.

Figure 1: MD21 Mini Camera in hand, highlighting its compact design.

Figure 2: Key features of the MD21 Mini Camera.

2. Package Contents

Please check the package for the following items:

• MD21 Mini Camera
• Back clip
• Base
• DV bracket
• Lanyard
• Strap (Bandage)
• Thimble (Reset pin)
• USB Cable
• User Manual
• Package Box

Figure 3: Contents included in the MD21 Mini Camera package.

3. Device Layout and Controls

Familiarize yourself with the camera's components and controls:

Figure 4: MD21 Mini Camera dimensions and component identification.

• Lens: Main camera lens.
• Night Vision Lamp: Infrared LEDs for low-light recording.
• LED Indicator: Displays device status (e.g., power on, recording).
• Mode Key: Used to switch between different operating modes.
• Power Key: Used for powering on/off and starting/pausing recording.
• Reset: Pinhole for factory reset (use the included thimble).
• USB Port: For charging and data transfer.
• TF Card Slot: For inserting a MicroSD/TF memory card.

4. Setup

1. Charge the Camera: Before first use, fully charge the camera using the provided USB cable connected to a power source (e.g., computer USB port, USB wall adapter). The charging time is approximately 2 hours.
2. Insert TF Card: The camera does not have built-in memory. You must insert a MicroSD/TF card (8GB to 64GB recommended) into the TF card slot. Ensure the card is inserted correctly.
3. Attach Accessories (Optional): Depending on your use case, attach the back clip, base, DV bracket, lanyard, or strap. The camera features a built-in magnet for easy attachment to metallic surfaces.

Figure 5: Inserting a TF card into the MD21 Mini Camera.

Figure 6: Magnetic attachment of the MD21 Mini Camera.

5. Operating Instructions

5.1 Basic Operation

1. Power On: Long press the Power Key for 3 seconds. The blue LED indicator will light up continuously, indicating the camera is on and in standby mode.
2. Start Recording: While in standby mode (blue light solid), press the Power Key again. The blue light will flash 3 times and then turn off, indicating that recording has successfully started.
3. Pause Recording: During recording, press the Power Key once. The blue light will turn solid, indicating recording is paused and the camera is back in standby mode.
4. Power Off: Long press the Power Key for 5 seconds to shut down the camera.

5.2 Advanced Features

• Night Vision: The camera is equipped with 6 infrared (IR) LEDs for night vision. These lights are invisible to the naked eye during operation. The night vision distance is approximately 3 to 5 meters, allowing for clear recording in dark environments.


Figure 7: Night vision capability with 6 IR LEDs.



Figure 8: Comparison of day and night recording quality.

• Motion Detection: When motion detection is enabled, the camera will automatically begin recording when it detects movement in front of its lens. This feature helps conserve battery life and storage space by only recording when necessary.


Figure 9: Motion detection in action.

• Loop Recording: The camera supports loop recording. When the memory card is full, the camera will automatically overwrite the oldest video files to make space for new recordings. This ensures continuous recording without manual intervention.


Figure 10: Illustration of loop recording functionality.

5.3 Viewing Recordings

1. Remove TF Card: After recording, power off the camera and carefully remove the TF card from its slot.
2. Insert into Card Reader: Insert the TF card into a compatible card reader.
3. Connect to Computer: Connect the card reader to your computer's USB port.
4. Access Files: Open the TF card drive on your computer to view and manage the recorded video files.

6. Maintenance

• Charging: Ensure the camera is charged regularly, especially before extended use. Use only the provided USB cable or a compatible charger.
• Cleaning: Use a soft, dry cloth to clean the camera body and lens. Avoid using harsh chemicals or abrasive materials.
• Storage: Store the camera in a cool, dry place away from direct sunlight and extreme temperatures when not in use.
• TF Card Care: Periodically format the TF card to maintain optimal performance and prevent data corruption. Back up important recordings before formatting.

7. Troubleshooting

• Camera not turning on: Ensure the camera is fully charged. Connect it to a power source and try again after a few minutes.
• Camera not recording: Check if a TF card is inserted and if it has sufficient free space. Ensure the TF card is formatted correctly.
• Blue light flashes but no recording: This might indicate an issue with the TF card or insufficient battery. Try a different TF card or recharge the camera.
• Poor video quality: Ensure the lens is clean and free from smudges. Check that you are recording in 1080P resolution if desired.
• Device unresponsive: Use the included thimble to press the reset button (located near the USB port) to restart the camera.

8. Specifications

Figure 11: Product parameters table.

9. User Tips

• Always ensure your TF card is properly inserted and formatted before starting any important recording.
• For optimal battery life, fully charge the camera before each use.
• Experiment with different mounting options (magnetic, clip, bandage) to find the best angle and stability for your recording needs.
• When reviewing footage, use a reliable media player on your computer to ensure smooth playback.
• If you experience any issues, a quick reset using the thimble can often resolve minor glitches.

10. Warranty and Support

For warranty information, technical support, or service inquiries, please contact the seller or manufacturer directly. Keep your purchase receipt as proof of purchase.