FLIR Scout III 640 Thermal Monocular Review 

 August 22, 2017

By  Randy Angwin

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Last updated on September 17, 2022

Are you preparing for your next outdoor adventure? The FLIR Scout III is the next generation of full-size thermal imaging monoculars. The Scout III line is available in either 30Hz or 60Hz. It offers you advanced image processing for up to 1200 yards.

FLIR Scout III 640_01


With a 640 x 480 pixel LCD this monocular guarantees you high resolution in pitch darkness or the brightest day. With bright and crisp thermal imagery, nothing can keep you from getting the best images whether it's foggy or snowing. It gives life-like pictures so that you can see the cougar hiding in the tall grass or the gray wolf behind the tree.

You will be happy to own the FLIR Scout III. It needs no skill and learning. It starts up in just about three seconds, and the interface is pretty simple to navigate. You get simple settings for the LCD brightness, polarity, zoom, and of course the power. The 240 model features freeze frame while the 320 model comes with 2x e-zoom. With the 640 model, you get a 4x e-zoom feature that gives you perfect focus of an object. 

FLIR Scout III 640_02


Scout III is a rugged thermal monocular that you can take absolutely anywhere. It fits in the palm of your hand, meaning it can also get in your pockets. With this monocular, you don’t need to worry about hard drops and falls in shallow water. It is a long-term investment you are never getting enough of anytime soon.

Although the Scout III is built for the outdoors, it is not designed for the oceans (click here to view thermal cameras designed for marine use). But you can get the FLIR Ocean Scout TK for easy navigation in total darkness. Speak of landmarks, vessels, buoys, floating debris; you have a tool to keep you safe and relaxed in all sorts of water activities.


  • Lightweight design at only 12 ounces
  • Comes in a weather tight shell
  • Startup is in seconds
  • It has a simple menu 
  • It can see up to 1200 yards


  • It has a limited number of detection palettes

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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