1. Introduction
The MiLESEEY TR120E is a portable thermal camera designed for precise thermal imaging and temperature anomaly detection. This manual provides essential information for the safe and effective use of your device, including setup, operation, maintenance, and troubleshooting.
2. Package Contents
Verify that all items listed below are present in your package:
- IR camera
- Macro lens
- USB cable
- 32GB SD card
- User manual (printed)
- Electronic manual (eManual)

Image: Contents of the MiLESEEY TR120E Thermal Camera package, including the camera, cables, and documentation.
3. Product Features
- Compact Precision Imaging: Delivers precise thermal imaging with a resolution of 120x90 pixels for identifying hot or cold spots.
- Enhanced User Experience: Features a 25Hz refresh rate for real-time data capture, aiding in the detection of issues like missing insulation, HVAC airflow problems, and compromised roofing.
- Advanced Thermal Sensitivity: With a thermal sensitivity of <0.06°C / NETD<60 mK, it detects minute temperature differences.
- Versatile Measurement Options: Offers Center Spot for pinpoint accuracy and HiLo tracking for continuous monitoring of hottest and coldest points. Temperature range: -20°C to 400°C (-4°F to 752°F).
- Robust and User-Friendly Design: IP54 reinforced body for durability, 2600 mAh lithium-ion battery providing 9 hours of usage, and rapid charging capability.
- Built-in LED Lights and Laser Pointer: For improved visibility and targeting in various environments.
- PC Analysis Software: Supports PC software for image capture, projection, and detailed analysis.
- 32GB Micro SD Card: Provides ample storage for multiple thermal graphics images.
4. Setup
4.1 Charging the Device
Before initial use, fully charge the thermal camera. Connect the provided USB cable to the camera's charging port and a compatible USB power adapter. The battery indicator on the screen will show charging status. A full charge provides approximately 9 hours of continuous operation.

Image: The MiLESEEY TR120E Thermal Camera connected to a USB cable for charging, showing the charging port cover open.
4.2 Inserting the SD Card
Locate the SD card slot on the device. Gently insert the provided 32GB Micro SD card until it clicks into place. This card is essential for storing thermal images and data.

Image: The MiLESEEY TR120E Thermal Camera screen showing stored thermal images, highlighting the 32GB Micro SD card storage capability.
4.3 Powering On/Off
Press and hold the power button (usually located on the handle or near the display) for a few seconds to turn the device on or off. The display will illuminate upon startup.
5. Operating Instructions
5.1 Basic Thermal Imaging
Point the camera at the object or area you wish to inspect. The thermal image will appear on the display, showing temperature variations. The 25Hz refresh rate ensures a smooth, real-time view.

Image: The MiLESEEY TR120E Thermal Camera in operation, showing a thermal image on its display with infrared resolutions and temperature range indicators.
5.2 Temperature Measurement Modes
The TR120E offers two primary measurement modes:
- Center Spot: Provides a precise temperature reading at the center of the screen.
- HiLo Tracking: Automatically identifies and displays the highest (hot spot) and lowest (cold spot) temperatures within the field of view.
Refer to the on-screen menu for selecting these modes.

Image: The MiLESEEY TR120E Thermal Camera displaying a thermal image with automatic hot and cold spot tracking, showing highest, lowest, and center temperatures.
5.3 Color Palettes
The camera supports 6 color palettes to visualize thermal data differently. You can switch between palettes (e.g., Rainbow, Iron Red, Lava, Rainbow HC, Black Hot, White Hot) via the device's menu to enhance contrast and detail for specific applications.

Image: A grid of six thermal images from the MiLESEEY TR120E, each demonstrating a different color palette (Rainbow, Iron Red, Lava, Rainbow HC, Black Hot, White Hot) for varied thermal analysis.
5.4 Using LED Lights and Laser Pointer
The built-in 3W LED lights can be activated to illuminate dark areas, while the laser pointer assists in precisely identifying the target of measurement. These features can be toggled through the device's interface.

Image: A person holding the MiLESEEY TR120E Thermal Camera, with its 3W LED lights and red laser pointer active, indicating its utility in dark environments.
5.5 PC Analysis Software
Connect the TR120E to a computer using the USB cable to utilize the PC analysis software. This software allows for advanced image analysis, data management, and report generation. Follow the on-screen instructions of the software for installation and usage.

Image: The MiLESEEY TR120E Thermal Camera connected via USB to a laptop, displaying the PC analysis software interface with thermal image data.
6. Maintenance
6.1 Cleaning
To clean the device, wipe it with a clean, dry cloth. Avoid using abrasive cleaners or solvents that could damage the polycarbonate casing or the lens. Ensure the device is powered off before cleaning.
6.2 Storage
Store the thermal camera in a cool, dry place away from direct sunlight and extreme temperatures. When not in use for extended periods, ensure the battery is partially charged (around 50%) to prolong its lifespan.
6.3 Battery Care
The device uses a rechargeable lithium-ion battery. For optimal battery life, avoid fully discharging the battery frequently and do not expose it to high temperatures.
7. Troubleshooting
This section addresses common issues you might encounter with your MiLESEEY TR120E Thermal Camera. For problems not listed here, please contact customer support.
7.1 Device Does Not Power On
- Ensure the battery is charged. Connect the device to a power source and allow it to charge for at least 30 minutes before attempting to power it on again.
- Verify that the power button is pressed and held for the required duration (typically a few seconds).
7.2 Image Appears Blurry or Unclear
- Check if the lens is clean. Gently wipe the lens with a soft, lint-free cloth.
- Ensure you are within the optimal measurement distance for clear thermal imaging.
- Adjust the focus if your model supports manual focus.
7.3 Device Not Connecting to PC Software
- Verify the USB cable is securely connected to both the camera and the computer.
- Ensure the PC analysis software is correctly installed and updated on your computer.
- Try a different USB port on your computer.
7.4 Inaccurate Temperature Readings
- Check the emissivity setting. Different materials have different emissivities, which can affect temperature accuracy. Adjust the emissivity setting in the camera's menu to match the material being measured.
- Ensure there are no obstructions or reflective surfaces between the camera and the target.
8. Specifications
| Feature | Detail |
|---|---|
| Brand | MiLESEEY |
| Model Number | TR120E |
| Special Feature | Non-Contact |
| Color | Black |
| Outer Material | Polycarbonate (PC) |
| Infrared Resolution | 120 x 90 pixels |
| Refresh Rate | 25Hz |
| Thermal Sensitivity (NETD) | <0.06°C / <60 mK |
| Temperature Range | -20°C to 400°C (-4°F to 752°F) |
| Measurement Modes | Center Spot, HiLo Tracking |
| Display Type | Digital |
| Connectivity Technology | Infrared, USB |
| Power Source | Battery Powered (Rechargeable) |
| Battery Type | 1 Lithium Ion battery required |
| Battery Capacity | 2600 mAh (approx. 9 hours runtime) |
| Storage | 32GB SD card included |
| Ingress Protection (IP) Rating | IP54 (Dust and splash resistant) |
| Drop Proof | 2-meter drop proof |
| Item Weight | 454 g |
| Product Dimensions (LxWxH) | 25 x 15 x 9 cm |
| Product Care Instructions | Wipe Clean |
| Specification Met | CE |
9. Warranty and Support
9.1 Product Warranty
The MiLESEEY TR120E Thermal Camera is backed by a warranty of up to 18 months. Please retain your proof of purchase for warranty claims. For specific terms and conditions, refer to the warranty documentation included with your product or contact MiLESEEY customer service.
9.2 Return Policy
A 60-day return policy is offered for this product. Please refer to the retailer's return policy for detailed instructions and conditions.
9.3 Customer Support
For technical assistance, troubleshooting, or any inquiries regarding your MiLESEEY TR120E Thermal Camera, please contact MiLESEEY customer support through their official website or the contact information provided in your product documentation.