Description
ThermTec Cyclone 625
The Cyclone 625 is a compact and lightweight handheld thermal monocular designed for close and mid-range observation. Equipped with a 640×512, 12μm thermal sensor and NETD below 20mK, it delivers clear thermal imaging with stable performance across changing outdoor conditions.
With a detection range reaching up to 1300 meters, the Cyclone 625 provides reliable target detection and situational awareness for hunting, wildlife observation, and outdoor exploration.
ThermTec AI Calibration improves image stability by reducing calibration interruptions and minimizing image freezing, creating a smoother and more consistent viewing experience in the field.
The device also supports multi-target ranging for faster distance estimation, while the quick startup system ensures immediate readiness during dynamic outdoor situations.
Its lightweight ergonomic construction allows comfortable one-handed operation and easy everyday carry, making the Cyclone 625 a practical thermal solution for hunters and outdoor users seeking mobility, simplicity, and dependable thermal performance.

Quality Meets Accessibility
ThermTec Cyclone 625 combines dependable thermal performance with a compact lightweight design, delivering excellent value for hunters and outdoor users seeking reliable everyday thermal observation.
Equipped with a high-sensitivity NETD below 20mK detector, Cyclone captures sharp thermal details and stable image clarity even in difficult weather conditions and low-contrast environments.
Built around ThermTec’s commitment to performance and reliability, the Cyclone series offers a more portable design and a more accessible entry point into thermal imaging without compromising essential field capability.
Compact, practical, and easy to operate, Cyclone provides an efficient thermal solution tailored for users who want dependable performance at an attractive value.

Precision in a Compact Design
ThermTec Cyclone 625 features a compact lightweight construction with an ergonomic curved housing designed for comfortable everyday carry and effortless field operation.

Its balanced shape fits naturally in the hand, supporting full one-handed control with quick and easy access to every function, whether operated with the left or right hand.
The carefully positioned button layout creates intuitive handling from the very first use, allowing fast adjustments and confident operation during dynamic outdoor situations.

20 hours of work
ThermTec’s energy-efficient technology, combined with replaceable rechargeable batteries, provides 10 hours of continuous operation. With two batteries, you can enjoy up to 20 hours of continuous use. In addition, the device maintains operation while charging.

Consistently Clear and Stable Imaging
ThermTec Cyclone 625 integrates advanced AI algorithms that continuously improve image processing performance during operation. Each use contributes to an ongoing machine learning process, allowing the device to adapt to different environments and maintain consistently sharp, stable, and reliable thermal imaging under similar conditions.
By analyzing environmental data in real time, Cyclone reduces image instability and improves overall viewing consistency for smoother and more dependable observation in the field.
Fast 3-Second Startup
Cyclone is designed for immediate readiness during critical moments outdoors. With an ultra-fast 3-second startup time, the device powers on almost instantly after pressing the power button, helping you react quickly and avoid missing important movement or activity during observation.

Intelligent Multi-Target Distance Detection
ThermTec Cyclone 625 integrates advanced AI-powered ranging technology designed to improve target awareness and observation efficiency in the field.
When multiple heat sources appear within the viewing area, Cyclone automatically detects and measures the distance to each target simultaneously, helping users assess the environment faster and with greater accuracy.
This intelligent multi-target ranging system enhances situational awareness during hunting, scouting, and outdoor surveillance, allowing quicker decision-making and more efficient target tracking in dynamic conditions.

| Specifications | ThermTec Cyclone 625 | ThermTec Cyclone 325 | ThermTec Cyclone 315 |
|---|---|---|---|
| Resolution | 640×512 | 384×288 | 384×288 |
| Pixel Pitch | 12µm | 12µm | 12µm |
| NETD | 20mK@300K | 20mK@300K | 20mK@300K |
| Spectral Range | 8-14µm | 8-14µm | 8-14µm |
| Frame Rate | 50Hz | 50Hz | 50Hz |
| Detection Range | 1300m | 1300m | 750m |
| Objective Lens | 25mm F1.0 | 25mm F1.0 | 15mm F1.0 |
| Field of View | 17.5° × 14° | 10.5° × 7.9° | 17.5° × 13.1° |
| Field of View at 100m | 30.8 × 24.6m | 18.4 × 13.8m | 30.7 × 23.0m |
| Optical Magnification | 1.4× | 2.4× | 1.4× |
| Digital Zoom | 1× / 2× / 4× | 1× / 2× / 4× | 1× / 2× / 4× |
| Eye Relief | 20mm | 20mm | 20mm |
| Exit Pupil | 6mm | 6mm | 6mm |
| Diopter | ±5D | ±5D | ±5D |
| Display Type | AMOLED | AMOLED | AMOLED |
| Display Resolution | 1024×768 | 1024×768 | 1024×768 |
| Display Size | 0.39 inch | 0.39 inch | 0.39 inch |
| Color Palette | 6 | 6 | 6 |
| Image Mode | Forest / Target / Outline | Forest / Target / Outline | Forest / Target / Outline |
| Photo / Video Playback | Yes | Yes | Yes |
| Language | Multiple Languages | Multiple Languages | Multiple Languages |
| Inbuilt Memory | 32GB | 32GB | 32GB |
| Audio Recording | Yes | Yes | Yes |
| Calibration | Auto / Manual | Auto / Manual | Auto / Manual |
| PIP | Yes | Yes | Yes |
| AI Distance Measurement | Yes | Yes | Yes |
| Heat Track | Yes | Yes | Yes |
| OSD Recording | Yes | Yes | Yes |
| Burn Prevention | Yes | / | / |
| Internal Battery | Replaceable & Rechargeable Li-ion Battery (18650×1) | Replaceable & Rechargeable Li-ion Battery (18650×1) | Replaceable & Rechargeable Li-ion Battery (18650×1) |
| Battery Life | 8h | 10h | 10h |
| USB Type-C | Charging & Data Transfer | Charging & Data Transfer | Charging & Data Transfer |
| Hotspot | Yes, App Remote Control | Yes, App Remote Control | Yes, App Remote Control |
| Working Temperature | -20℃ to +50℃ | -20℃ to +50℃ | -20℃ to +50℃ |
| Protection Level | IP67 | IP67 | IP67 |
| Weight | 261g without battery | 261g without battery | 255g without battery |
| Dimensions | 136×76×54mm | 135×76×54mm | 139×76×54mm |
| External Cable | USB Cable | USB Cable | USB Cable |
| Other Accessories | Lens Cloth, Charger, Battery, etc. | Non-dust Cloth, etc. | Non-dust Cloth, etc. |
ThermTec Handheld Series: A New Generation of Thermal Hunting Performance








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