HS635 - Hydra 640x512 35mm Multi-Function Thermal Scope - Standalone Scope, Clip-On, Handheld Monocular

Haven't mounted it on my rifle yet but it is awesome as a handheld so far.

Great product. 3 in one 640 for under 2k. 5 years ago I would have told not possible. Good job dnt.

EARLY REVIEW: I don’t normally like posting reviews until I have had a significant amount of time with a product. However, the short time I have spent with the HS635 Hydra… all I can say is I AM IMPRESSED! I have used thermal imaging devices for over 30 years. Going all the way back to the AN/PAS-20. In more recent yearsI have owned and used several of the competing companies thermal devices. If you are in the market for an entry level PRICE TAG thermal device that packs in HIGH END EXPENSIVE capabilities… STOP LOOKING AND PICK UP THE HS635 HYDRA!!! You will not be disappointed!

I saw a few early reviews of this sight and took a risk. I am glad I did! I have several thermal sights, but none can really be used as a clip on in front of LVPO sights like this one can. I really like it and the simple controls.

I've been using the HS635 Hydra 640x512 35mm thermal scope for a few days now, and it's been nothing short of exceptional. From the moment I powered it on, the high-resolution 640x512 thermal sensor delivered crisp, detailed imaging that made identifying targets at distance effortless—even in total darkness or obscured conditions.

The 35mm germanium lens offers a perfect balance between field of view and magnification. I found it ideal for medium- to long-range observation and targeting, whether I was scanning open fields or working in more confined wooded areas. The refresh rate keeps motion fluid, which makes tracking moving animals or objects smooth and intuitive.

What really sets the HS635 apart is its user-friendly interface and build quality. The rugged design feels durable in the field, yet it's compact and lightweight enough for long hunts without fatigue. The intuitive menu system and quick-access buttons make adjusting palettes, zoom levels, and recording options incredibly easy, even while wearing gloves.

I also appreciated the built-in video recording and image capture capability. Being able to document what I see in real-time has added a whole new layer to my outings—both for sharing with others and for reviewing footage later.

Battery life is impressive as well, easily lasting through extended nighttime operations without worry.

In summary, the HS635 Hydra is a top-tier thermal optic that delivers on every front: image clarity, detection range, ruggedness, and usability. Whether you're a hunter, rancher, or security professional, this scope provides serious capability at a competitive price point.

Highly recommended.