Name: Armasight Sidekick 640 1x19mm Thermal Monocular
Brand: Armasight
SKU: 0A-THM-SSDK2
Price: 2499.00 USD
Availability: InStock
Rating: 4.6 (5 reviews)

Armasight Sidekick 640 Thermal Monocular, 1x19mm, 60 Hz, 640x480, Black, TAVT66MN9SIDE101

Government Export Restriction

This item may be regulated for export by the U.S. Department of State or the U.S. Department of Commerce. Please see our Export Policy prior to placing your order.

Product Videos

Armasight Sidekick 640 00:40

Documents

Armasight Sidekick Manual

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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

See 1 More Answer

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

View All Q&A You Have a Question? Ask!

Customer Reviews

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...
Read More...

5/5 found this helpful

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...
Read More...

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...
Read More...

24/24 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...
Read More...

6/6 found this helpful

Most Recent Reviews

Great thermal, expensive mount options by Gunrunner72, Verified Owner, January 22, 2026

Be aware that helmet mounting options for this model are VERY limited and the Armasight mount is VERY expensive. The thermal itself is really good for the price point if you're looking to scan for hogs and coyotes.

Read All 5 Reviews

Magnification:: 1 x
Color:: Black
Resolution:: 640x480 pixels
Refresh Rate:: 60 Hz
Condition:: New
Condition Quality:: Excellent
Condition Details:: Other

Code: 0A-THM-SSDK2-TAVT66MN9SIDE101

MPN: TAVT66MN9SIDE101

UPC: 810081911672

List: ~~$3,299.00~~Save 24%

$2,499.00

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Armasight Sidekick 640 Thermal Monocular, 1x19mm, 60 Hz, 640x480, Black, TAVT66MN9SIDE101

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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.

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 - 50 Celsius, -40 - 122 Fahrenheit
Condition Quality:	Excellent
Range of Detection:	709 m on human sized target
Condition Details:	Other
Noise Equivalent Temperature Difference:	40 mK NETD
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

Package Contents:

Armasight Sidekick 640 1x19mm Thermal Monocular
2 CR123A Battery
USB-C Cable
Product Manual
Lens Cloth
Soft Case

Armasight Warranty

The Armasight Warranty is built on trust when it matters most. Every Armasight product is designed for performance and durability, and we stand behind it. If your unit shows defects in materials or workmanship, we’ll repair or replace it—no charge. If we can’t, we’ll provide a product of equal or greater value.

Register your product within 60 days to extend coverage, gain access to updates, and ensure you’re mission-ready at all times.

Coverage:

Night Vision Devices: 1 Year Standard / 3 Years Extended
Thermal Imaging Devices: 1 Year Standard / 3 Years Extended
Laser & Illumination Devices: 1 Year Standard / 3 Years Extended
Accessories & Components: 6 Months Standard / 1 Year Extended

Your warranty applies to the original owner with proof of purchase. While it does not cover loss, theft, misuse, or cosmetic wear that doesn’t affect performance, you can count on Armasight to stand behind our commitment to quality and mission-ready reliability.

Armasight gear is built to perform—our warranty ensures it stays that way.

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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

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

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Armasight Sidekick 640 1x19mm Thermal Monocular TAVT66MN9SIDE101, Color: Black w/ Free S&H

Product Info for Armasight Sidekick 640 1x19mm Thermal Monocular

Specifications for Armasight Sidekick 640 1x19mm Thermal Monocular:

Features of Armasight Sidekick 640 1x19mm Thermal Monocular

Package Contents:

Armasight Warranty

Armasight Sidekick 640 1x19mm Thermal Monocular Orderable Models

List of Orderable Models

Armasight Sidekick 640 1x19mm Thermal Monocular Unavailable & Discontinued Models

List of Unorderable Models

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More Deals

Armasight Sidekick 640 1x19mm Thermal Monocular TAVT66MN9SIDE101, Color: Black w/ Free S&H

Product Info for Armasight Sidekick 640 1x19mm Thermal Monocular

Specifications for Armasight Sidekick 640 1x19mm Thermal Monocular:

Features of Armasight Sidekick 640 1x19mm Thermal Monocular

Package Contents:

Armasight Warranty

Armasight Sidekick 640 1x19mm Thermal Monocular Orderable Models

List of Orderable Models

Armasight Sidekick 640 1x19mm Thermal Monocular Unavailable & Discontinued Models

List of Unorderable Models