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Questions & Answers
what caliber is the max for his scope. I have a 450 bushmaster AR and the scope turns off every time i shoot. Expert Answer

For the Zeus Pro models, Armasight lists maximum recoil Resistance as
"0.50 BMG weapon shock and recoil".

Mark H.

by Mark H., Gear Expert, December 15, 2017
What is the detection in recognition, distant for the scope? Manufacturer Answer

Unfortunately, that specification for this legacy model is not listed in the user manual or on the specification sheet.

by Armasight, Manufacturer, July 23, 2025
Customer Reviews
Helpful Positive Review
Flir Zeus Pro 640 4-32×100mm Scope by Jacob Isebrands, Verified Owner, January 14, 2022
Wow is all I can say.. This thing is amazing and thats putting it lightly. I can detect planes in the sky at over 2 miles away. Ive fully detected and identified various planes in the sky and animals in my surrounding. I bought this to both hunt hogs...
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2/2 found this helpful
Helpful Positive Review
Zeus Pro 100mm by Gary Griffin, Verified Owner, November 2, 2017
I used it 2 or 3 times and the reticle just disappeared. IT can be seen in sighting in and reticle selection but just turned on it does not come up. I called and they called back very promptly and I'm waiting on an RMA to send it back. He said there ...
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3/4 found this helpful
Helpful Positive Review
What an amazing gear! by Iceman, May 28, 2015
I was waiting for this since it was backordered. I am ecstatic with overall performance, especially for longer 200-300-yard ranges. I tried quiet few thermals in the past, both in service and for hunting. This scope outperforms them all. PROS: This s...
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35/36 found this helpful
Helpful Positive Review
customer service department sucks by Night vision owner, January 7, 2022
This company Armasight service dept want answer tHe phone had to press for sales to get to talk to a person luckily he helped with my problem service dept never ever contacted me and I could not ever get in contact with them about what was wrong w...
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1/1 found this helpful
Helpful Positive Review
Best tool for hog control. Period. As far as hunting goes Zeus Pro makes my PVS-14 as useful as ... on boar, LOL. Solid scope with great optics. Had it mounted on RRA 300 blackout. We had overcast night, no moon and way out from any lights. In two ho...
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11/12 found this helpful
Helpful Positive Review
Easy to set up, very good viewing through scope. Great having the GPS and compass in view.Excellant images at close range as well as distances out to 900 meters. The changeable reticles are also great as well as selectable image colors such as black...
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2/7 found this helpful
Read All 9 Reviews

Product Discontinued by Manufacturer

Armasight Zeus Pro 640 4-32x100mm Thermal Imaging Monocular has been discontinued by Armasight and is no longer available. Our product experts have helped us select these available replacements below.You can also explore other items in the Thermal Imaging, Thermal Imaging Monoculars yourself to try and find the perfect replacement for you!

Product Info for Armasight Zeus Pro 640 4-32x100mm Thermal Imaging Monocular

Easily spot prey on the hunting grounds by tracking their heat signature with an Armasight Zeus Pro 640 4-32x100mm Thermal Imaging Monocular. These Thermal Imaging Monoculars developed by the experts at Armasight perform in any environmental conditions, allowing you to clearly locate targets through smoke, dust, and fog. This long eye-relief thermal sight is comfortable to use and features an array of advanced technologies that will maximize your weapon efficiency. With user-selectable reticles and color palettes, you can customize this thermal imaging device to suit your needs and environment.image

This Armasight Zeus Pro 640 Thermal Rifle Scope comes equipped with a digital compass and inclinometer that help you calculate distance, direction, and angles of incline. As a MIL-STD-810 compliant device, you can use this military-grade thermal scope in all weather conditions and in any situation. Improve your hunting game or be properly equipped for any tactical operation with this 4-32x thermal rifle scope.

Features of Armasight Zeus Pro 640 4-32x100mm Thermal Imaging Monocular:

  • 24/7 Operation in presence of environmental obscurants (smoke, dust, haze, fog)
  • Superior engineering and design from inception to Armasight's 20/50 standard
  • Rugged MIL-STD-810 compliant performance
  • Operates on 123A or AA batteries
  • Reliable quick-release locking weapon mount
  • Objective Germanium Lens Options
  • TAU-2 17 Micron Pitch Thermal Sensor
  • SVGA 800x600 OLED Display
  • Long eye-relief eyepiece lens
  • Digital Compass
  • Digital Inclinometer
  • Battery Status Indicator
  • Multiple User Selectable Ballistic and Quick Acquisition Reticules
  • Selectable Reticule Color
  • Selectable Palettes: White Hot/ Black Hot/ Sepia/ OEM Custom/ Other Color Variants
  • Active Contrast Enhancementâ„¢ (ACE)
  • Smart Scene Optimizationâ„¢ (SSO)
  • Information Based Histogram Equalizationâ„¢ (IBHEQ)
  • Second Generation Digital Detail Enhancementâ„¢ (DDE)
  • Silent Shutterless Non-uniformity Correctionâ„¢ (SSN)
  • Wireless 5-button Remote
  • Tracking Digital e-Zoom: 2x / 4x / 8x (640x512 only)
  • Still Picture and Video Recording Capability (Mounted DVR Option)
  • NOTE: Re-Armed products carry a 3-month warranty, 1 year with registration

Package Contents:

  • Armasight Zeus Pro 640 4-32x100mm Thermal Imaging Monocular

Thermal Monocular Mounts

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Thermal Monocular Accessories

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Related Products to Armasight Zeus Pro 640 4-32x100mm Thermal Imaging Monocular

Armasight Zeus Pro 640 4-32x100mm Thermal Imaging Monocular Unavailable & Discontinued Models

List of Unorderable Models

  • REARMED, Armasight Zeus Pro 640 4-32x100 Thermal Imaging Weapon Sight, FLIR Tau 2, 640x512, 17, 30hz Core, 100mm Lens, TAT163WN1ZPRO41 , MPN: TAT163WN1ZPRO41-REARMED , Code: 0A-THM-ZEUSP4640-TAT163WN1ZPRO41-REARMED
  • Armasight Zeus Pro 640 4-32x100 Thermal Imaging Weapon Sight, FLIR Tau 2, 640x512, 17, 30hz Core, 100mm Lens, TAT163WN1ZPRO41 , MPN: TAT163WN1ZPRO41 , UPC: 849815005196 , Code: 0A-THM-ZEUSP4640-TAT163WN1ZPRO41
  • Demo, Armasight Zeus Pro 640 4-32x100 Thermal Imaging Weapon Sight, FLIR Tau 2, 640x512, 17, 30hz Core, 100mm Lens, TAT163WN1ZPRO41 , MPN: TAT163WN1ZPRO41-DEMO , Code: 0A-THM-ZEUSP4640-TAT163WN1ZPRO41-DEMO
  • Armasight Zeus Pro 640 4-32x100 Thermal Imaging Weapon Sight, FLIR Tau 2, 640x512, 17, 60hz Core, 100mm Lens, TAT166WN1ZPRO41 , MPN: TAT166WN1ZPRO41 , UPC: 849815005202 , Code: 0A-THM-ZEUSP4640-TAT166WN1ZPRO41
  • DEMO, Armasight Zeus Pro 640 4-32x100 Thermal Imaging Weapon Sight, FLIR Tau 2, 640x512, 17, 60hz Core, 100mm Lens, TAT166WN1ZPRO41 , MPN: TAT166WN1ZPRO41-DEMO , Code: 0A-THM-ZEUSP4640-TAT166WN1ZPRO41-DEMO
  • Armasight Zeus Pro 640 4-32x100mm Thermal Imaging Weapon Sight with FREE Scout II 320 , Code: 0A-THM-ZEUSP4640-TAT163WN1ZPRO41-KIT1
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