The Cyclone series is ThermTec's compact entry-level thermal imaging device – built for hunters seeking a lightweight, reliable, and no-frills solution. All models share the same 12 µm sensor with a NETD < 20 mK , ensuring a clear, low-noise image even in poor weather conditions. The image is displayed on a 0,39-inch AMOLED screen with 1024×768 pixels – razor-sharp and high-contrast. ThermTec's AI calibration keeps the image stable without the need for manual adjustments. The device starts up in just 3 seconds – never miss a shot. All models are IP67 -rated for robust construction and operate in temperatures ranging from -20 °C to +50 °C . The batteries are replaceable and use the standard 18650 type.
Forest & immediate area
Medium distance
Field & Far View
| Cyclone 315 | Cyclone 325 | Cyclone 625 | |
|---|---|---|---|
| lens | 15 mm F1.0 | 25 mm F1.0 | 25 mm F1.0 |
| sensor resolution | 384 × 288 | 384 × 288 | 640 × 512 |
| Field of view at 100 m | 30,7 × 23,0m | 18,4 × 13,8m | 30,8 × 24,6m |
| detection range | 750 m | 1.300 m | 1.300 m |
| rangefinder | No, AI distance measurement | No, AI distance measurement | No, AI distance measurement |
| Battery life | 10 Std. | 10 Std. | 8 Std. |
| Weight | 255 gr | 261 gr | 261 gr |
For short stalks in dense woods, the Cyclone 315, with its wide field of view, is the right choice – lightweight, affordable, and quick to spot. Those who frequently scan open areas and need greater range should opt for the Cyclone 325 with its narrower field of view. The Cyclone 625 combines a larger sensor with a wide field of view, making it best suited for hunters who want both an overview and sharp details in the field – although its battery life is somewhat shorter.
In today's review, we're taking a look at the ThermTec Cyclone 625 – a pocket-sized thermal imaging handheld device with a 640x512 sensor, a wide field of view, and up to 16 hours of battery life. We tested it while stalking and hunting from a stand and will show you which hunting areas it's best suited for. Read on!
Feel free to contact us for advice regarding ThermTec Cyclone thermal imaging devices or other equipment and gain a practical overview. I'm a hunter. When you come to see me, you won't be talking to a salesperson – but to someone who actually uses the devices in the field. There's a hunting blind right next to the showroom. Take a seat, try out the device – and look out. That's how you'll really see how it performs. I'll take my time for you. Therefore, I kindly ask you to schedule an appointment beforehand.
Yours sincerely, Jens Dewenter Venari Hunting, Rastede
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