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Questions & Answers
Can this be mounted as a thermal clip on for a rifle? Manufacturer Answer

No, the Sidekick series is designed to be used as a handheld or helmet mounted device.

by Armasight, Manufacturer, April 3, 2025
What additional equipment would I need to mount this to a helmet? Manufacturer Answer

The Sidekick series can be mounted to a helmet in many various ways. One option is the Armasight #183 Helmet Mount, found here: https://www.opticsplanet.com/armasight-mnvd-helmet-mount-183.html

by Armasight, Manufacturer, July 2, 2025
Customer Reviews
Helpful Positive Review Armasite sidekick 640 by Oldguns, Verified Owner, April 16, 2024
I had a 320 unit before and this unit takes to the next level.Too little quirks I have is the USB protector comes out to easy. Armasigjt you can come up with a better cover that stays in place. The other is the paperwork that come with the unit is la...
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2/2 found this helpful
Helpful Positive Review Armasight Sidekick 640 Thermal Monocular by Lowspeed101, May 23, 2024
First off, the folks at Armasight have been excellent to deal with. Their customer service and efforts to help with questions, have been the best I've ever dealt with in a company. I purchased and received this unit after reading, studying, and comp...
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3/3 found this helpful
Helpful Positive Review Worth the wait by James, Verified Owner, April 18, 2024
I ordered this optic what feels like a lifetime ago, I had o idea that it was going to take months to arrive. However Optics Planet communicated clearly and honestly and the price was so good the wait was worth it. I've paired this device with a PVS1...
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18/18 found this helpful
Helpful Positive Review For the price, made in America, cant be beat. by Dutch, Verified Owner, May 8, 2024
Is it the best thermal, No. Don't expect an Apache gunsight FLIR, you will have to adjust the settings to get the best picture for the environment. However, what is this good for? This is perfect for scanning your environment for targets. If you scan...
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4/4 found this helpful
Read All 4 Reviews
Magnification: 1 xColor: Black Resolution: 640x480 pixelsRefresh Rate: 60 HzCondition: New Included Accessories: 2 x CR123A Battery , Lens Cloth , Product Manual , Soft Case , USB-C Cable

Code: 0A-THM-SSDK2-TAVT66MN9SIDE101

MPN: TAVT66MN9SIDE101

UPC: 810081911672

10% Bonus Bucks
List: $3,299.00Save $300.00
$2,999.00
Receive $299.90 OP Bucks

Product Info for Armasight Sidekick 640 1x19mm Thermal Monocular

The Armasight Sidekick 640 mini thermal monocular is the smallest 12-micron thermal optic on the market, boasting a lightning-fast 60Hz frame rate for smooth operation and superb image sharpness. Based on Armasight’s Iron Wolf thermal technology platform, the Armasight 640 features an HD 1024x768 OLED display with icons that display key information like battery status and direction. With multiple color palettes and ergonomic 3-button control, Sidekick 640 thermal is built to simplify your observation and scouting efforts.image

Weighing under 250 grams, these lightweight Thermal Imaging Monoculars can be used as a handheld device or mounted to a helmet utilizing the integrated Dovetail mini rail for hands-free operation. Built-in one-touch image and video recording, you can capture every moment in a flash. Upgrade your optical setup with the Armasight Sidekick 640 thermal monocular today to experience crisp, clear views 24/7 in even the thickest forestry.

Specifications for Armasight Sidekick 640 1x19mm Thermal Monocular:

Manufacturer: Armasight
Magnification: 1 x
Color: Black
Resolution: 640x480 pixels
Field of View, Angle: 24.16-17.37 degrees
Objective Lens Diameter: 19 mm
Width: 2.6 in
Length: 5.7 in
Height: 1.9 in
Eye Relief: 15 mm
Battery Type: 16650, CR123A
Weight: 0.53 lb
Water Resistance Level: IP67
Refresh Rate: 60 Hz
Finish: Black
Condition: New
Lens Material: Germanium
Operating Temperature: -40 - 122 Fahrenheit, 40 - 50 Celsius
Range of Detection: 709 m on human sized target
Noise Equivalent Temperature Difference: 40 mK NETD
Included Accessories: Lens Cloth, Product Manual, Soft Case, 2 x CR123A Battery, USB-C Cable
Battery Quantity: 1
Diopter Adjustment Range: -5 - 5 dpt
Active On-Screen Graphics and Iconology: Active On-Screen Graphics and Iconology
Zoom Range: 1x - 4x
Dimensions: 5.7X1.9X2.6 in
Memory: 4 Hours of Video
Volume Range: 111m on a Human Sized Target
Display Resolution: 1024x768 pixels

Features of Armasight Sidekick 640 1x19mm Thermal Monocular

  • Multiple color palettes
  • Intuitive 3-button control
  • 1 hour runtime on 1 CR123A battery at 20 degrees C
  • Image Detail Enhancement
  • Dovetail Mini-Rail Included for Helmet Mounting (with optional mount)
  • Video Recording and Image Capture
  • USB Video Stream
  • USB-C Interface for External Devices
  • Compass
  • Battery Status Indicator
  • ULTEM Composite Body and Ergonomic Design
  • Designed and Assembled in the USA from U.S. and global components

Package Contents:

  • Armasight Sidekick 640 1x19mm Thermal Monocular
  • 2 CR123A Battery
  • USB-C Cable
  • Product Manual
  • Lens Cloth
  • Soft Case
  • Warranty - 3 years w/ registration

Armasight Sidekick 640 1x19mm Thermal Monocular Orderable Models

List of Orderable Models

Armasight Sidekick 640 Thermal Monocular, 1x19mm, 60 Hz, 640x480, Black, TAVT66MN9SIDE101 , MPN: TAVT66MN9SIDE101 , UPC: 810081911672 , Code: 0A-THM-SSDK2-TAVT66MN9SIDE101

Armasight Sidekick 640 1x19mm Thermal Monocular Unavailable & Discontinued Models

List of Unorderable Models

REARMED, Armasight Sidekick 640 1x19mm Thermal Monocular, 60 Hz, 640x480, Black, TAVT66MN9SIDE101 , MPN: TAVT66MN9SIDE101-REFURB , Code: 0A-THM-SSDK2-TAVT66MN9SIDE101-REARMED
DEMO, Armasight Sidekick 640 1x19mm Thermal Monocular, 60 Hz, 640x480, Gray, TAVT66MN9SIDE101 , MPN: TAVT66MN9SIDE101-DEMO , Code: 0A-THM-SSDK2-TAVT66MN9SIDE101-DEMO
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