Thermal optics have become increasingly popular among hunters, law enforcement and military professionals due to their ability to detect heat signatures in complete darkness, adverse weather and through smoke or fog. As technology advances, these optics are becoming more compact, feature-rich and while still pricey, are much more affordable than they were just five to 10 years ago. The lower costs and more versatile technology are making them a more possible sought after tool by hog and predator hunters, as well as for possible home defense scenarios. Armasight, a leader in thermal and night vision optics, continues to push the envelope with two new releases: the Operator 640 Thermal Clip-On Optic and the Warden 640 Handheld Thermal Monocular.

Operator 640: Turning Day Optics into Thermal Precision

For shooters who want to add thermal capability to their existing rifle setup without swapping optics, the Operator 640 Thermal Clip-On is designed to integrate easily with any 1-6x variable optic scope. Built around Armasight’s ArmaCORE 640×480 12-micron thermal sensor, the Operator 640 provides a detection range of up to 1,300 meters, allowing users to see targets regardless of lighting or weather conditions.

Key Features

• Clip-On Simplicity – Mounts in front of a day optic with no re-zeroing required.
• High-Resolution Thermal Imaging – 640×480 resolution, 60Hz refresh rate for smooth imaging.
• Quick-Detach Mount – Allows fast installation and removal.
• Multiple Color Palettes – Customizable viewing options to enhance contrast and visibility.
• Durability – High-strength aluminum alloy construction with a .50 BMG recoil rating.
• Battery Life – Up to four hours on a CR123 battery.

The optic is ideal for law enforcement overwatch, hunting and military applications, providing a lightweight but rugged solution for spotting and engaging heat signatures at extended distances.

Warden 640: A Compact, Handheld Thermal Powerhouse

Making its debut at SHOT Show 2025, the Warden 640 expands Armasight’s Iron Wolf platform with a highly portable, high-performance thermal monocular. Designed for scouting, search and rescue, surveillance and hunting, the Warden 640 provides the same ArmaCORE 640×480 12-micron sensor found in the Operator 640 but in a handheld form.

Key Features of the Warden 640

• Handheld Thermal Capability – Perfect for scanning large areas quickly.
• 22° x 18° Field of View – Wide FOV for increased situational awareness.
• 2x Optical and 1-4x Digital Zoom – Closer target identification without pixelation.
• Image & Video Capture – Record and review footage for analysis or documentation.
• USB-C Connectivity – Stream and view content on external displays.
• IP67 Waterproof Rating – Built for extreme environments and harsh weather.
• Lightweight and Ergonomic – Weighs under 1 pound for extended handheld use.
• Battery Life – Up to four hours of continuous runtime on two CR123 batteries.

The Warden 640 is built for both professionals and outdoor enthusiasts, offering a reliable and compact solution for those who need to detect and track heat sources without mounting an optic to a rifle. Great for scouting.

Growing Demand for Thermal Optics

Thermal optics have moved beyond military applications, becoming essential tools for law enforcement, ranchers and hunters. They offer significant advantages over traditional night vision, allowing users to track game, detect threats, find lost animals or people and enhance overall situational awareness without relying on ambient light sources or giving up your own location.

Armasight’s Operator 640 Clip-On and Warden 640 Monocular make for two practical solutions for those looking to incorporate thermal imaging into their shooting or observation gear. The join another new release by Armasight and covered by The Truth About Guns last week, the Commander 640 Thermal Weapon Sight. Whether you’re scanning a field for hogs, hunting predators or for law enforcement, tracking a suspect in low visibility or conducting overwatch operations, these optics provide an excellent tactical advantage.

Pricing and Availability

For more information, visit Armasight.com.