Description
ThermTec Ventus 650L
The Ventus 650L combines an ultra-sensitive thermal sensor with optimized NETD below 15mK together with an advanced 12MP CMOS sensor, delivering sharp and stable imaging performance during both daytime and nighttime observation.
Switchable 850nm and 940nm IR illuminators enhance visibility in low-light environments and support reliable target recognition across changing outdoor conditions.
ThermTec AI Calibration improves image sharpness and viewing stability by reducing calibration interruptions and minimizing image freezing, creating smoother observation in dynamic environments.
With balanced optical magnification and a detection range reaching up to 2600 meters, Ventus 650L supports effective long-range scanning and confident target identification. Seamless mode switching and ergonomic controls further improve comfort and stability during prolonged field operation.

Integrated 5-in-1 Observation System
Ventus 650L combines several advanced technologies within one integrated multi-spectrum platform:
• NETD below 15mK thermal sensitivity
• Advanced 4K Ultra CMOS sensor
• Dual-band IR illumination
• Precision laser rangefinder
• Digital and thermal day/night observation
This 5-in-1 system delivers reliable imaging performance across daylight, twilight, and total darkness while supporting accurate target detection, recognition, and distance measurement in demanding terrain and difficult environmental conditions.

4K Ultra Image Clarity
The advanced 4K Ultra CMOS sensor delivers detailed 12MP imaging displayed on a high-resolution 0.5-inch OLED screen with 1600×1200 resolution.
This combination produces a sharper, clearer, and more immersive visual experience with improved detail visibility and enhanced image depth.

Thermal Super Resolution
Thermal Super Resolution combines native optical magnification with smooth digital zoom up to 14.8x, enhanced by AI-powered image processing technology.
The system maintains detailed thermal imaging and improved clarity across the entire zoom range for more precise target observation and recognition at long distances.

Ergonomic Design for Better Control
The ergonomic body structure with integrated hand and body support enables smooth one-handed operation through the dual focus wheel system.
Its balanced design allows comfortable use for both left-handed and right-handed users while improving handling stability during extended outdoor sessions.

Improved Comfort and Durability
The durable rubber-coated housing with anti-slip texture maintains reliable grip and flexibility even in cold outdoor conditions.
Adjustable interpupillary distance from 60mm to 72mm allows comfortable adaptation for different users and helps reduce fatigue during prolonged observation.

Efficient Power Management
Ventus 650L operates with two replaceable 18650 batteries, providing up to 6 hours of continuous runtime.
An integrated proximity sensor automatically switches off the display when the device is not in use, helping reduce unnecessary power consumption and improve overall battery efficiency during field operation.
| Specifications | ThermTec Ventus 635 | ThermTec Ventus 650 |
|---|---|---|
| Thermal Resolution | 640×512 | 640×512 |
| Pixel Pitch | 12μm | 12μm |
| NETD | <15mK@300K | <15mK@300K |
| Spectral Range | 8-14μm | 8-14μm |
| Thermal Objective Lens | 35mm F0.9 | 50mm F1.0 |
| Thermal Field of View / 100m | 12.5° × 10° / 21.9 × 17.6m | 8.8° × 7.0° / 15.4 × 12.3m |
| Frame Rate | 50Hz | 50Hz |
| Thermal Magnification | 2.6× – 10.4× (4×) | 3.7× – 14.8× (4×) |
| Detection Range | 1800m | 2600m |
| Optical Resolution | 3536×3536, 2μm | 3536×3536, 2μm |
| Optical Field of View / 100m | 8.1° × 8.1° / 14.14 × 14.14m | 8.1° × 8.1° / 14.14 × 14.14m |
| Optical Objective Lens | 50mm F1.4 | 50mm F1.4 |
| IR Illuminator Wavelength | 850nm / 940nm Switchable | 850nm / 940nm Switchable |
| Night Viewing Range | 850nm: 400m / 940nm: 350m | 850nm: 400m / 940nm: 350m |
| Optical Magnification | 4× – 16× (4×) | 4× – 16× (4×) |
| Display Type | AMOLED | AMOLED |
| Image Display Resolution | 1600×1200 | 1600×1200 |
| Display Size | 0.5 inch | 0.5 inch |
| Color Palette | 6 | 6 |
| EIS | Yes | Yes |
| Eye Relief | 20mm | 20mm |
| Exit Pupil | 8mm | 8mm |
| Diopter | ±5D | ±5D |
| Interpupillary Adjustment Range | 60mm – 72mm | 60mm – 72mm |
| Image Mode | Forest / Rainy | Forest / Rainy |
| TSR Algorithm | Yes | Yes |
| LRF Safety Class | Class 1 | Class 1 |
| LRF Wavelength | 905nm | 905nm |
| LRF Range | 1000m | 1000m |
| LRF Accuracy | ±1m | ±1m |
| Photo / Video Playback | Yes | Yes |
| Audio Recording | Yes | Yes |
| Azimuth | Yes | Yes |
| Digital Magnetic Compass | Yes | Yes |
| Hotspot | Yes | Yes |
| Language | Multiple-language | Multiple-language |
| Storage | 64GB EMMC | 64GB EMMC |
| PIP | Yes | Yes |
| Heat Track | Yes | Yes |
| Local Album | Yes | Yes |
| OSD Recording | Yes | Yes |
| Burn Prevention | Yes | Yes |
| Internal Battery | Replaceable Li-ion Battery (18650×2) | Replaceable Li-ion Battery (18650×2) |
| USB Type-C | Data Transfer | Data Transfer |
| Battery Life | 6h | 6h |
| Working Temperature | -20℃ to +50℃ | -20℃ to +50℃ |
| Protection Level | IP67 | IP67 |
| Weight | 825g | 833g |
| Dimensions | 164×127.6×73mm | 164×127.6×73mm |
| Mounting Adapter | 1/4-20-UNC | 1/4-20-UNC |
ThermTec Ventus: The Future of Multi-Spectrum Hunting Vision









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