The DNT Optics Hydra 25mm thermal weapon sight with a 384×288 sensor (brand part no. HS325) is a three-in-one thermal from DNT Optics. It works as a standalone scope, as a clip-on in front of a low-magnification day optic, or as a handheld monocular. The body is CNC machined from a single block of 6061 aluminum, and the unit runs on interchangeable flat-top 18650 batteries. For hunters who want one thermal that can ride on a rifle, clip onto an existing scope or scan a field by hand, the Hydra covers all three jobs.

Key Specifications

• The thermal sensor resolution is 384×288, the image size that sets how much detail the sight can resolve.
• The objective lens is 25mm, matched to the 384×288 sensor in this Hydra model.
• The display is a 1024×768 micro-OLED, a high-resolution screen for a clear viewing image.
• Eye relief is 65mm (2.5 inches), with a forgiving eye box so it behaves like a conventional rifle scope.
• Weight is 13.7 ounces (389 grams), light enough for rifle mounting or handheld scanning.
• Power comes from an interchangeable flat-top 18650 battery, a rechargeable cell that supports long outdoor use.
• The housing is CNC-machined 6061 aluminum with an IP67 waterproof rating.
• Recoil resistance is rated up to .50 BMG / 800 Gs, a durability figure aimed at hard-kicking rifles.

Frequently Asked Questions

Can the Hydra be used as a clip-on thermal? Yes. DNT describes the Hydra as a standalone scope, a clip-on and a handheld monocular. For clip-on use with a variable optic, DNT recommends staying in the lower half of the optic’s magnification range.

What battery does the Hydra use? It uses interchangeable flat-top 18650 batteries, which are rechargeable.

Is the Hydra waterproof? DNT gives it an IP67 waterproof rating and a recoil rating up to .50 BMG / 800 Gs.

Buy the DNT Optics Hydra 25mm Thermal Weapon Sight, 384×288

Most thermal sights make you choose between a rifle scope and a handheld. The Hydra is designed to do both and to clip in front of a daytime optic as well. Order it from our Lubbock, Texas gun shop for fast, insured shipping, and see more thermal sights while you are here.