The ThermTec WILD 635L is a new generation thermal imaging camera focusing on image stability, detail representation, and fast distance measurement. The 640x512 sensor with NETD ≤ 18 mK (manufacturer's specification) provides a visibly more stable separation of game and surroundings, especially on damp nights, in fog, or with low temperature contrast. In addition, it features an integrated laser rangefinder (LRF) up to 1,000 m (manufacturer's specification) – practical for making confident decisions before taking further action.
Key Features
- Sensor Resolution: 640 × 512, Pixel Pitch 12 µm (manufacturer's specification)
- System Performance: NETD ≤ 18 mK (manufacturer's specification)
- Lens: 35 mm, Aperture F0.9 (manufacturer's specification)
- Field of View: 12.5° × 10.0° / 22.0 m field of view width at 100 m (manufacturer's specification)
- Display: AMOLED 1024 × 768 (manufacturer's specification)
- LRF: up to 1,000 m, Accuracy ± 1 m (manufacturer's specification)
- Optical Magnification: 2×; Digital Zoom: 1× to 4× stepless (manufacturer's specification)
- Battery: 18650 replaceable battery, Runtime up to 8 h per battery, 2 batteries included (manufacturer's specification)
- Storage: 64 GB, Photo/Video + Playback on device (manufacturer's specification)
- Protection Class: IP67 (manufacturer's specification)
- Operation: Joystick/Rocker + top-mounted focus wheel (manufacturer's specification)
Our Assessment – from an Instructor & User Perspective
For practical use, two things are crucial in thermal imaging: detail separation and distance measurement. This is exactly where the WILD 635L shines. A low NETD value is not a marketing gimmick – it ensures that you see finer temperature differences when game and surroundings "blend together" (e.g., damp meadows, light fog, mild nights). This makes identification and observation less strenuous, as you don't have to constantly work against a "muddy" image.
Practical added value: The integrated LRF eliminates a major source of error in distance estimation. The same silhouette can quickly appear "closer" in a thermal image than it is – and this is where an actual measurement brings calm to the setup. If the LRF achieves 1,000 m for you (manufacturer's specification), it's primarily a safety reserve: You can reliably measure even when you "only roughly" need the distance. Common usage errors include excessive digital zoom (image becomes grainier) and lack of focusing: Thermal imaging is unforgiving – clean focus is the difference between "there's something there" and "I can recognize something."
This device is useful for anyone who regularly works in changing conditions and values image quality, one-handed usability, and accurate distance values. It may be overkill if you only use short distances and a smaller sensor/without LRF would suffice.
Features & Operation
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Top Focus Wheel: can be adjusted very quickly in practice when distance or temperature contrast changes (manufacturer's specification)
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Image Adjustment: Sharpness, noise reduction, brightness, and contrast are each adjustable in steps (manufacturer's specification)
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Color Palettes: 6 palettes, unused palettes can be deactivated in the quick menu (manufacturer's specification)
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PIP (Picture-in-Picture): helps with observation/identification without losing the overall view (manufacturer's specification)
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App/Hotspot: Live image and data transfer via WLAN connection possible (manufacturer's specification)
Technical Data
- Manufacturer/Model: ThermTec WILD 635L
- Sensor: VOx, 640 × 512, 12 µm (manufacturer's specification)
- NETD: ≤ 18 mK (manufacturer's specification)
- Frame Rate: 50 Hz (manufacturer's specification)
- Lens: 35 mm, F0.9 (manufacturer's specification)
- Field of View (°): 12.5 × 10.0 (manufacturer's specification)
- Field of View Width at 100 m: 22.0 m (manufacturer's specification)
- Display: AMOLED, 1024 × 768 (manufacturer's specification)
- Magnification: 2× optical; 1×–4× digital stepless (manufacturer's specification)
- LRF: up to 1,000 m; Accuracy ± 1 m (manufacturer's specification)
- Storage: 64 GB (manufacturer's specification)
- Protection Class: IP67 (manufacturer's specification)
- Tripod Thread: 1/4" (manufacturer's specification)
- Weight: 505 g (manufacturer's specification)
- Dimensions (L×W×H): 190 × 69 × 77 mm (manufacturer's specification)
- Operating Temperature: -20 °C to +50 °C (manufacturer's specification)
- Battery: Li-ion 18650; Runtime up to 8 h per battery (manufacturer's specification)
- External Power Supply: USB 5 V (manufacturer's specification)
Scope of Delivery
- 1× ThermTec WILD 635L Thermal Imager
- 2× 18650 Battery
- 1× Charger
- 1× USB-C Cable
- 1× Cleaning Cloth
- 1× Hand Strap
- 1× Neck Strap
- 1× Storage Bag
- 1× German User Manual
Note: All range and performance specifications (e.g., LRF up to 1,000 m, NETD ≤ 18 mK, detection/recognition distances) are manufacturer's specifications and may vary significantly depending on weather, humidity, temperature contrast, and target size. Please practice operation (focus, palettes, image parameters) in a calm environment before use.
FAQ
What does a NETD of ≤ 18 mK mean in practice?
A low NETD value means higher thermal sensitivity. You see finer gradations of temperature differences, which stabilizes detail representation in humid weather or with low contrast (manufacturer's specification).
Why is an integrated LRF so valuable?
Thermal imaging can optically deceive distances. An actual measurement reduces misjudgments and provides verifiable values before you make further decisions.
How useful is digital zoom in thermal imaging?
Digital zoom magnifies the image but not the sensor resolution. For details, clean focusing is crucial; too much zoom can make the image appear coarser.
How long does the device realistically run?
ThermTec specifies up to 8 hours per 18650 battery (manufacturer's specification). In practice, it depends on temperature, display brightness, WLAN/LRF use, and settings. Two batteries are included in the scope of delivery.
Is the WILD 635L suitable for both forest and open field?
With a 35mm optic and 22m field of view width at 100m, it's a versatile mix of overview and detail (manufacturer's specification). Whether it's ideal depends on your typical distances and hunting ground.
