ATN OTS 4T 640 4-40x


X-SIGHT 4K PRO 3-14X + ABL1000

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ATN OTS 4T 640 4-40x

Thermal Smart HD Monocular

The Next Generation of Thermal Sensors are here and they are Powered by ATN’s Obsidian IV Dual core
Thermal Detection Range Chart
Detection: 1.5 pixels / 0.75m = 2 pixels per meter
Recognition: 6 pixels / 0.75m = 8 pixels per meter
Identification: 12 pixels / 0.75m = 16 pixels per meter
Better than I imagined
Jeff C.
rating based on 1 review
Better than I imagined
The image is as clear or clearer than my Thor scope. Nice to have so I’m not scanning around with my rifle. The rifle get heavy after awhile. Glad I purchased it.
Jeff C.

Ultra sensitive next gen sensor

Video Record

up to 64GB

Record and Share your Hunt with a press of a button.
Video files stored on an internal micro SD card.

Easy to use

New controls
Spin to Zoom Wheel - what could be more Natural. While the new Tactile Buttons let you feel every click for optimal control.

Smart Range Finder

Fast and easy way to make a good distance estimate to your target.

Dual Stream Video

You asked and we listened.
Obsidian 4 not only Streams Video at HD resolution but can simultaneously Record to the SD card inside.

At the same time!

Ultra low power consumption

Hours of Continuous Use

Our New Dual Core Processor not only runs fast but runs cool. 1 st ever digital monocular with over 16+hrs of continuous battery power.

Light Weight

Light weight and Ergonomic - this is one tool you'll want at all times!
1.98 lb
900 g


ATN OTS 4T 384 1.25-5x ATN OTS 4T 384 2-8x ATN OTS 4T 384 4.5-18x ATN OTS 4T 384 7-28x ATN OTS 4T 640 1-10x ATN OTS 4T 640 1.5-15x ATN OTS 4T 640 2.5-20x done ATN OTS 4T 640 4-40x
SensorGen 4 384x288, 60HzGen 4 640x480, 60Hz, <25 mK
Magnification1.25 - 5x2 – 8x4.5 – 18x7 – 28x1 – 10x1.5 – 15x2.5 – 25x4 – 40x
Field of view, degrees16x12.512x9.56x4.75x3.832x2524x1912.5x9.78.3x6.2
CoreATN Obsidian IV Dual Core T
Micro Display1280x720 HD Display
Eye relief25 mm
Video Record Resolution1280x960 @ 30/60 fps
Ballistic CalculatorYes
WiFi (Streaming, Gallery, & Controls)iOS & Android
3D GyroscopeYes
3D AccelerometerYes
Smart Range FinderYes
Electronic CompassYes
Smooth ZoomYes
Micro SD cardFrom 4 to 64 GB
Micro USB, type CYes
Internal Lithium Ion Battery18+ hrs16+ hrs
Waterproof rating / IP ratingWeather resistant
Dimensions8.7”x3.1”x3” / 220x80x758.7”x3.1”x3” / 220x80x75 mm9.3”x3.1”x3” / 235x80x75 mm10.2”x3.1”x3” / 260x80x75 mm8.7”x3.1”x3” / 220x80x75 mm8.7”x3.1”x3” / 220x80x759.3”x3.1”x3” / 235x80x75 mm10.2”x3.1”x3” / 260x80x75 mm
Weight850 g / 1.87 lb875 g / 1.93 lb900 g / 1.98 lb850 g / 1.87 lb875 g / 1.93 lb900 g / 1.98 lb
Warranty3 years
Human Detection Range75096018003000830105019503300
Human Recognition Range33548072013203505308001450
Human Identification Range205300430720225330475800
* This product is subject to one or more of the export control laws and regulations of the U.S. Government and it falls under the control jurisdiction of either the US Department of State or the US BIS-Department of Commerce. It is unlawful and strictly prohibited to export, or attempt to export or otherwise transfer or sell any hardware or technical data or furnish any service to any foreign person, whether abroad or in the United States, for which a license or written approval of the U.S. Government is required, without first obtaining the required license or written approval from the Department of the U.S. Government having jurisdiction. For further information please contact ATN.
Included accessories
ots lt bag Soft Carrying Case
usb c cable USB-C Cable
214 Lens Tissue
atn extended life battery kit


  • 10,000 mAh Battery Pack
  • USB to Micro USB w/ L Shape Connector
  • Neck strap with battery holder

Don't let yourself be stuck without a functioning unit, because you didn't bring extra batteries to power your device. ATN Extended Life Battery kit can support your binoculars or monoculars for up to 15 hrs. You can use your devices longer and save money and the environment in the process. Enjoy your activities all day long - whether scouting, camping, bird watching, or surveillance. You can even power your none ATN devices, which are compatible with a micro USB. Designed to be used with the ATN line of Smart HD Optics: BinoX 4K, BinoX 4T, OTS LT and OTS 4T.

Online Manual and User Guide

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3000 Grapevine Mills PWKY

Space #133 Grapevine, TX 76051