FLIR Armasight Zeus 336 3-12×50 Thermal Scope Review 

 February 19, 2018

By  Randy Angwin

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Last updated on September 17, 2022

The FLIR Zeus 336 3-12x50 (60Hz) is the latest addition to the family of Zeus thermal imaging weapon sights that are known for their ground-breaking thermal imaging technology and cutting-edge performance.

Ideally made for Sporting, Law Enforcement, and Military markets, the Armasight Zeus 336 is an advanced thermal scope that arrives in 10 different models for a variety of uses and mission applications. While it is primarily a weapon scope, you can also use it effectively in less demanding applications as a magnified spotting scope or handheld thermal imager. The FLIR Armasight Zeus 336 thermal imaging scope is based on the FLIR Tau 2 VOx microbolometer core – the technology that offers reliable thermal imaging for UAVs, UGVs & handheld devices. The amazing features and versatility of the FLIR Armasight Zeus make it a great choice is especially if you are looking for one of the more technologically advanced premium thermal imaging rifle scopes. Keep reading our Flir Armasight Zeus review and decide if this is the right product for you.

Main Features of the FLIR Zeus 336

flir ZEUS-PRO 336 4-16X50

Display and Construction:

The rifle scope comes with AMOLED SVGA 800x600 display with 336×256 pixel array format and optical magnification of 3.4x(PAL)/ 2.8x(NTSC). This model is the 60Hz model; the higher refresh rate ensures smooth target tracking even while moving. It comes in user selectable PAL (768×574 pixels)/ NTSC (640×480 pixels) analog input and output format for high-resolution thermal imaging. It also arrives with an optional digital video recorder with SD card slot and onboard replay feature. This thermal rifle scope has a rugged CNC machined aircraft-aluminum alloy construction, which makes it an ideal device to be used in any environment.

Mounting options:

Since the Armasight Zeus 336 is based on the MIL-STD-1913 (Picatinny Rail) quick release locking mechanism, its installation is very easy and reliable. 

Menu and Navigation:

Apart from being the smallest and lightest in its class, the Armasight Zeus 336 also features simple and intuitive controls, functions and features that make it easier for the user to operate it. The intuitive drop-down user interface and easy-to-understand control functions allow the operator to customize his preferences and take advantage of the variety of settings available in the thermal scope. The Armasight Zeus 336 thermal imaging rifle scope also comes with a wireless remote control for tactical operations.

FLIR Tau 2 17-Micron Thermal Sensor:

The FLIR ZEUS 336 comes with the latest Tau 2 17-micron uncooled FLIR core technology with improved electronics that offer an unparalleled set of features and capabilities such as continuous digital zoom, increased sensitivity, radiometry and powerful image processing modes. It features 17-micron pixel pitch for high-resolution imagery during the day and enhanced vision during the night.  

User-Adjustable Imaging Tools:

The FLIR Zeus thermal scope comes with the following special user-adjustable imaging tools for increased ruggedness, reliability and high-level target accuracy.

  • Active Contrast Enhancement (ACE)
  • Second Generation Digital Detail Enhancement (DDE)
  • Smart Scene Optimization (SSO)
  • Automatic Gain Control (AGC)
  • Silent Shutterless Non-uniformity Correction™ (SSN)


The Zeus 336  thermal imaging rifle scope is based on solid state, uncooled, long-wave infrared technology that allows you to detect targets day and night by cutting through dust, snow, smoke, haze, fog, and other atmospheric hazards. The special user-adjustable imaging tools combined with the color reticle platform ensure target accuracy, maximum reticle contrast, and boresight retention in the Armasight Zeus 336.

1x, 2x and 4x Digital e-zoom:

The digital e-zoom function of this thermal imaging scope allows 1x to 2x and 4x zooming capability to maintain situational awareness with target focus. You can zoom in on the target without changing the point-of-aim to point-of-impact relationship of the targeting reticle. This further allows a high-level of precision translating into a higher likelihood of making your shot.

Additional Features:

  • Fast 30Hz or 60Hz imaging models
  • White Hot/ Black Hot/ Rainbow/ Various Color Modes
  • 6 onboard digitally controlled reticle patterns
  • Electronic zoom reticle tracking capability maintaining boresight
  • Optional External Battery Power Supply
  • Rapid start-up
  • Shuttered eye guard to maintain light security and prevent facial display backsplash

FLIR Warranty:

The FLIR Armasight Zeus 336 thermal scope comes with a limited 3-year warranty and 10-year warranty on the FLIR thermal detector. Given the higher price for this thermal imaging scope, having a good warranty is definitely a benefit.

Who is it for?

While this highly advanced, state-of-the-art thermal scope is specially designed for use in tough environments and the most demanding applications such as serious hunting and military warfare, it can also be used as a handheld imager in firefighting, search and rescue missions or as a common tool for heating and cooling inspections. They can also be effectively employed in unattended ground systems, security, surveillance systems and more.

Although it is reasonably priced for use in complex missions by SWAT Teams, Military and serious hunters, it may not be a right choice for hobbyists and homeowners who do not need all the extra, high-end features of this device. While this thermal rifle scope can be used for a variety of applications it is guilt and intended for the serious hunter or military use where quality and features are more important than price.

Final Thoughts:

Flir is constantly expanding its product line by releasing new thermal imaging devices. All of its products have a high demand in the market and the reason is obvious – their products stand up to the claims made about them. The high-end features of the FLIR Zeus 336 3-12x50 really make it one of the best thermal riflescopes available in the market for hardcore mission operations. It has a superior price-to-performance value which makes it a perfect choice for all those who are looking for a highly-advanced and versatile thermal imaging scope with powerful features and functionality. 

About the author 

Randy Angwin

Randy Angwin holds a master of science degree from University of Florida. He is an expert in infrared and night vision technology. His knowledge helps us staying on top of the latest trends in the thermal industry. When not working, Randy likes to hunt and spend time with his two German shepherds.

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