1. Introduction
The RuoShui Victor 328D/E is a dual-vision phone thermal imaging camera designed for high-precision temperature analysis. It integrates an industrial-grade thermal detector with a 3.2mm lens and a visible light digital camera (640x480 resolution) to provide clear and detailed thermal and visual imaging. This lightweight, portable, plug-and-play device connects to Android phones via Type-C, offering professional thermal imaging analysis through a dedicated mobile application.
The camera supports a wide temperature measurement range from -15°C to 600°C and features various display modes, high-temperature alarms, and image editing capabilities.
Video: Product overview and function demonstration.
2. Product Overview

Figure 2.1: Dual Vision Thermal Imager with key features.

Figure 2.2: Model-specific thermal and visible light resolutions.
2.1 Key Features
- High-quality optical lens with high-resolution thermal imaging.
- Visible light digital camera with 640x480 auxiliary imaging for enhanced clarity.
- Lightweight and portable design for mobile use.
- Wide temperature measurement range: -15°C to 600°C.
- Support for high temperature alarm with customizable thresholds.
- Multiple display modes and fusion modes for clearer image effects.
- High and low temperature tracking.
- Ability to add points, lines, and rectangular boxes for regional temperature measurement and tracking.
- Durable aluminum alloy shell.
- Supports multiple languages: English, French, German, Spanish, Portuguese, Italian, Russian, Japanese, Korean, and Chinese.
2.2 Dimensions and Weight

Figure 2.3: Product dimensions and weight.
- Weight: 22g
- Body Size: 51.6mm x 34mm x 13.2mm
3. Setup and Installation
- **Compatibility Check**: Ensure your Android phone runs on Android system 10.0 or above and uses a CPU with Qualcomm Snapdragon 7 series or above for optimal performance.
- **App Installation**: Download and install the dedicated thermal imaging analysis APP from the official source (usually provided via a QR code in the packaging or instruction manual, or through your phone's app store).
- **Connect the Camera**: Carefully plug the Type-C connector of the thermal imaging camera into your Android phone's Type-C port.
- **Launch App**: Open the installed thermal imaging analysis APP. The camera should be automatically detected and the thermal image displayed on your phone screen.

Figure 3.1: Thermal imager with Type-C connector.
4. Operating Instructions
The thermal imaging camera is operated through its dedicated mobile application. Below is an introduction to the app's panel functions and key operations.
4.1 App Panel Introduction

Figure 4.1: Overview of the application interface.
- **Settings**: Access general settings, temperature units, language, and high temperature alarm settings.
- **Over Temperature Warning**: Configure and activate alarms for temperatures exceeding a set threshold.
- **Interface Reset**: Reset the application interface to its default layout.
- **Taking Photos**: Capture still thermal images.
- **Video Recording**: Record thermal video footage.
- **Album**: Access and manage saved photos and videos.
- **Color Palette**: Change the thermal color scheme (e.g., Iron Red, White Heat, Black Heat, Rainbow, Red Heat, Cold Blue).
- **Regional Temperature Measurement**: Add points, lines, or rectangular boxes to measure temperature in specific areas.
- **Display Mode**: Switch between various image display modes (e.g., Single infrared, Visible light, Fusion modes, Picture in Picture).
- **Fusion Offset Adjustment**: Adjust the alignment between thermal and visible light images for optimal fusion.
- **Image Locking and Mirroring**: Lock the image within a desired temperature range or mirror the image horizontally/vertically.
- **High Temperature Quick Check**: Quickly identify and highlight high-temperature areas.
4.2 Key Functions in Detail
4.2.1 Over Temperature Alarm

Figure 4.2: Over temperature alarm and regional measurement.
When the highest temperature in the selected zone exceeds the alarm threshold, the system will sound an alarm, and the video screen will flash a red alarm. You can customize the alarm threshold value in the settings.
4.2.2 Regional Temperature Measurement
Click on the [Area Temperature Measurement] icon to add points, lines, and rectangular boxes for temperature measurement. Lines and rectangular boxes will display real-time highest and lowest temperatures of the area. Long-pressing a newly added area will bring up a delete icon.
4.2.3 Temperature Tracking

Figure 4.3: Automatic tracking of high and low temperatures.
The instrument supports automatic tracking of high and low temperatures, displaying the maximum and minimum temperature points on the screen.
4.2.4 Multiple Image Display Modes and Color Palettes

Figure 4.4: Available display modes and color palettes.
The app offers six display modes including Single Infrared, Visible Light, Edge Fusion Mode 1, Edge Fusion Mode 2, Overlay Fusion, and Picture in Picture. Additionally, you can choose from six false color palettes: Iron Red, White Heat, Black Heat, Rainbow, Red Heat, and Cold Blue.
4.2.5 Image Locking and Mirroring
Click the image lock and mirror buttons on the right to select lock, left and right, and up and down mirror images. After locking the screen, it will not rotate with the rotation of the phone.
4.2.6 Fusion Offset Adjustment
When observing close-range target objects, there may be deviations in visible and infrared lines in fusion mode. Click the fusion offset adjustment button on the right; four directional buttons will pop up, allowing you to adjust the fusion offset.
4.2.7 High Temperature Quick Check
In this mode, the high temperature area is displayed using the current color palette, while other areas are white hot. The temperature can be adjusted through the slider on the right side of the color palette bar. This mode is useful for quickly identifying high-temperature areas.
5. Specifications

Figure 5.1: Infrared thermal imaging technical indicators.

Figure 5.2: Visible light, software, and basic parameters.
5.1 Infrared Thermal Imaging
| Parameter | Specification |
|---|---|
| Resolving power | 328D: 160x120, 328E: 256x192 |
| Working wavelength | 8 - 14 µm |
| Frame rate | 25Hz |
| NETD | <50mK @25°C |
| Lens | 3.2mm |
| Field of view angle | 328D: 56° x 42°, 328E: 35° x 27° |
| Range | -15°C ~ 600°C |
| Accuracy | ± 2°C or ± 2% of reading |
5.2 Visible Light
| Parameter | Specification |
|---|---|
| Resolving power | 640 x 480 |
| Frame rate | 25Hz |
5.3 Software Functions (APP)
| Function | Description |
|---|---|
| Temperature measurement | High and low temperature tracking, center point, point, area, and line temperature measurement, temperature range viewing. |
| Image display mode | Visible light mode, multiple visible light and infrared fusion modes, single infrared mode display. |
| Temperature quick check | Supports one-click quick access to high-temperature areas. |
| Interval display | YES |
| Real time flipping | YES |
| Image color palette | Iron Red, White Heat, Black Heat, Rainbow, Red Heat, Cold Blue. |
| Photograph | YES |
| Videotape | YES |
| Image editing | Supports image graffiti and text notes. |
| Set up | Parameter configuration, temperature units, language, and high temperature alarm settings. |
5.4 Basic Parameters
| Parameter | Specification |
|---|---|
| Working temperature | -10°C ~ 75°C |
| Storage temperature | -45°C ~ 85°C |
| Protection rating | IP54 |
| Body weight | 22g |
| Body size | 51.6mm x 34mm x 13.2mm |
6. Maintenance
- **Cleaning**: Use a soft, dry cloth to clean the camera lens and body. Do not use abrasive cleaners or solvents. For stubborn dirt, a slightly damp cloth with mild soap can be used, followed by drying.
- **Storage**: When not in use, store the camera in its protective instrument pack in a cool, dry place, away from direct sunlight and extreme temperatures.
- **Handling**: Handle the camera with care to avoid dropping or impacting it, which could damage internal components or the lens.
- **Software Updates**: Regularly check for updates to the mobile application to ensure optimal performance and access to new features.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Camera not detected by phone. |
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| Image is blurry or unclear. |
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| Temperature readings seem inaccurate. |
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| App crashes or freezes. |
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8. User Tips
- For best results, ensure the camera lens is clean before each use.
- Experiment with different color palettes to find the best visualization for your specific application.
- Utilize the fusion modes to combine thermal and visible light images for a more comprehensive view of the scene.
- When measuring small or distant objects, use the regional temperature measurement tools (points, lines, boxes) for more precise readings.
- Keep your phone's operating system and the thermal imaging app updated to benefit from performance improvements and new features.
9. Warranty and Support
For technical support, service, or warranty inquiries, please contact the manufacturer or your point of purchase. Keep your purchase receipt as proof of purchase.
Manufacturer: RuoShui
Contact Information: For specific support, please refer to the contact details provided with your product packaging or visit the official RuoShui website.
10. Packaging Accessories

Figure 10.1: Packaging contents.
The product package typically includes:
- Color box
- Instrument pack (carrying case)
- Instruction manual (this document)
- Certificate of conformity
- Host (thermal imaging camera unit)
- Mirror cloth (for cleaning)