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The TU620 Thermal Imaging Monocular is a high-resolution portable thermal viewer designed for wildlife observation, property inspection, farm monitoring, search support, industrial maintenance, building inspection and night-time outdoor observation.
Equipped with a 640 × 480 uncooled vanadium oxide (VOx) thermal detector, 12 μm pixel pitch and NETD ≤30 mK thermal sensitivity, the TU620 provides detailed heat-signature imaging in complete darkness and visually challenging environments.
The thermal system combines a 25 mm F1.0 objective lens with approximately 1.4x base optical magnification, 1x–8x digital zoom and a wide 17.46° × 13.14° field of view. A fast 50 Hz refresh rate provides smooth thermal imagery during handheld scanning and observation.
For extended field use, the TU620 provides up to approximately 10 hours of continuous operation. It also features USB Type-C connectivity, Micro HDMI video output and manual objective focusing, with optional Bluetooth remote control and laser rangefinder configurations available.
Key Features
- 640 × 480 Thermal Resolution – High-resolution thermal imaging for detailed heat-signature observation.
- Uncooled VOx Detector – Vanadium oxide thermal sensor for portable infrared imaging.
- 12 μm Pixel Pitch – High-density detector architecture for detailed thermal images.
- NETD ≤30 mK – High thermal sensitivity for distinguishing subtle temperature differences.
- 8–14 μm Spectral Range – Long-wave infrared thermal detection.
- 25 mm F1.0 Objective Lens – Fast thermal lens designed for broad-area observation.
- 1.4x Base Optical Magnification – Practical magnification for scanning and general observation.
- 1x–8x Digital Zoom – Multiple enlargement levels for closer viewing.
- 50 Hz Refresh Rate – Smooth thermal image presentation during movement and scanning.
- 17.46° × 13.14° Field of View – Wide viewing area for locating and tracking heat sources.
- Manual Focus – Adjustable objective focusing for different observation distances.
- Up to 10 Hours Operation – Extended battery-powered field use.
- USB Type-C – Modern connectivity and charging interface.
- Micro HDMI Output – Connects to compatible external displays.
- Bluetooth Remote Control Option – Remote operation configuration available.
- Laser Rangefinder Option – Rangefinding configuration available.
- OEM / ODM / OBM Support – Commercial customization options.
- One-Year Warranty – Product warranty included.
Product Specifications
Model: TU620
Product Type: Thermal Imaging Monocular
Detector Type: Uncooled Vanadium Oxide (VOx) Detector
Thermal Resolution: 640 × 480 Pixels
Pixel Pitch: 12 μm
Spectral Range: 8–14 μm
Thermal Sensitivity: NETD ≤30 mK
Objective Lens: 25 mm
Lens Aperture: F1.0
Base Optical Magnification: Approximately 1.4x
Digital Zoom: 1x–8x
Field of View: Approximately 17.46° × 13.14°
Focus System: Manual Objective Focus
Refresh Rate: 50 Hz
Operating Time: Up to Approximately 10 Hours
Charging / Connectivity: USB Type-C
Video Output: Micro HDMI
Optional Remote Control: Bluetooth
Optional Laser Rangefinder: Available
Customization: OEM / ODM / OBM
Warranty: One Year
640 × 480 Thermal Imaging
The TU620 incorporates a 640 × 480 thermal detector with a 12 μm pixel pitch, delivering high-resolution thermal imagery for detailed observation of heat signatures.
The high-resolution detector supports:
- Detailed heat-source observation
- Clear separation of nearby thermal objects
- Improved image quality during digital enlargement
- Observation of smaller thermal subjects
- Broad-area thermal scanning
- Detailed inspection of equipment and structures
Uncooled Vanadium Oxide Detector
The TU620 uses an uncooled vanadium oxide thermal detector operating across the 8–14 μm long-wave infrared spectrum.
The uncooled detector architecture provides efficient thermal imaging within a compact portable device and allows the monocular to detect infrared energy emitted by people, animals, equipment, buildings and surrounding objects without requiring visible light.
NETD ≤30 mK Thermal Sensitivity
The TU620 provides a thermal sensitivity rating of NETD ≤30 mK.
This high thermal sensitivity helps the detector distinguish small temperature differences within a scene, supporting detailed thermal observation in environments with reduced temperature contrast.
25 mm F1.0 Objective Lens
The 25 mm F1.0 objective lens provides a wide thermal viewing configuration suitable for general scanning and short- to medium-distance observation.
The F1.0 aperture works with the high-resolution VOx detector to collect infrared energy efficiently while maintaining a broad viewing area.
1.4x Base Magnification & 8x Digital Zoom
The TU620 provides approximately 1.4x base optical magnification with digital enlargement from 1x to 8x.
This combination allows users to begin with a wide thermal scene and enlarge selected subjects when closer visual inspection is required.
Digital zoom provides additional viewing flexibility while retaining the monocular's compact optical design.
Wide 17.46° × 13.14° Field of View
The TU620 provides an approximately:
Horizontal Field of View: 17.46°
Vertical Field of View: 13.14°
The wide viewing area is particularly useful when scanning open spaces, locating heat sources, monitoring wildlife and inspecting larger areas.
50 Hz Refresh Rate
A 50 Hz thermal refresh rate provides smooth image presentation during handheld operation.
The higher refresh rate supports:
- Walking observation
- Broad-area scanning
- Moving-subject observation
- Wildlife monitoring
- Property checks
- Machinery inspection
- General outdoor thermal viewing
Manual Objective Focus
The TU620 features manual objective focusing, allowing image focus to be adjusted according to observation distance.
Manual focus provides direct control over image sharpness when moving between subjects positioned at different distances.
Up to 10 Hours Operating Time
The TU620 provides a listed operating duration of up to approximately 10 hours, supporting extended outdoor and field observation sessions.
The long operating time makes the monocular suitable for applications requiring prolonged portable thermal monitoring without continuous external power.
USB Type-C Connectivity
A USB Type-C interface provides modern connectivity for the TU620 and supports its rechargeable portable design.
The Type-C connection provides a convenient standardized interface for compatible power and connectivity equipment.
Micro HDMI Video Output
The TU620 includes Micro HDMI video output, allowing the thermal image to be connected to compatible external display or video equipment.
This provides additional flexibility for applications where thermal imagery needs to be viewed on a larger external screen.
Optional Bluetooth Remote Control
The TU620 supports an optional Bluetooth remote control, providing remote access to supported device controls without requiring direct operation of the monocular's physical buttons.
Optional Laser Rangefinder
A laser rangefinder configuration is available for the TU620, adding distance-measurement capability to the thermal observation platform.
This option provides a practical solution for users who require both high-resolution thermal imaging and distance measurement from their field observation equipment.
Suitable Applications
The TU620 Thermal Imaging Monocular is designed for:
- Wildlife observation
- Farm monitoring
- Property inspection
- Search support
- Night-time outdoor observation
- Security patrols
- Building heat-loss inspection
- Electrical inspection
- Mechanical equipment inspection
- Industrial maintenance
- General heat-source detection
Customization Options
The TU620 supports OEM, ODM and OBM customization for commercial and professional applications.
Customization options include:
- Product branding
- Packaging
- Housing configuration
- Firmware
- Menu language
- Accessories
- Remote-control configuration
- Laser rangefinder configuration
Warranty
The TU620 includes a one-year warranty.
Important Use Information
Avoid pointing the thermal detector directly at the sun, welding arcs, lasers or other intense energy sources, as these can damage sensitive thermal imaging components.
Keep the 25 mm objective lens clean and dry and protect the USB Type-C and Micro HDMI interfaces during outdoor operation. Store the monocular securely when not in use.