ATN OTS 4T 640 2.5-20x Thermal Monocular

(2 customer reviews)


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SKU: TIMNO4643A Category:


ATN OTS 4T 640 2.5-20x Thermal Monocular (1,950 yards of detection!)

The OTS 4T is the latest thermal monocular from ATN. Featuring a full suite of features and sensors that has set the Obsidian 4T line of products apart from the competition. What sets this monocular apart is the long lasting 16+hrs battery life. Enhanced performance and range in dynamic conditions. Ultra-sensitive 4th Gen Sensors with plenty of rich features. New controls: Spin to Zoom Wheel – what could be more Natural. While the new Tactile Buttons let you feel every click for optimal control.

You asked and we listened. Obsidian 4 not only Streams Video at HD resolution but can simultaneously Record to the SD card inside. Our New Dual Core Processor not only runs fast but runs cool. 1st ever digital monocular with over 16+hrs of continuous battery power. Light weight and Ergonomic – this is one tool you’ll want at all times!


Color: Black
Magnification: 2.5 – 25 x
Resolution: 640×480 pixels
Field of View, Angle: 12.5×9.7 degrees
Eye Relief: 25 mm
Battery Type: Internal Li-Ion battery
Battery Life: 16+ hours
Length: 9.3 in
Width: 3 in
Height: 3.1 in
Refresh Rate: 60 Hz
Weight: 1.93lb
Range of Detection: 1950yds
Battery Quantity: 1
Memory: Micro SD up to 64GB
Video Record Resolution: 1280×960 @30/60 fps
Display Resolution: 1280×720 pixels
Weather Resistance: Yes


  • Record Video
  • Wi-Fi Dual Stream Video
  • Smart Range Finder
  • ATN Obsidian IV Dual Core Processor
  • Ultra Low Power Consumption (16+hrs Use)
  • Smooth Zoom
  • Ballistic Calculator: Yes
  • Wi-Fi (Streaming Gallery & Controls): iOS & Android
  • Bluetooth: Yes
  • 3D Gyroscope: Yes
  • 3D Accelerometer: Yes
  • E-Barometer: Yes
  • Smart Range Finder: Yes
  • Electronic Compass: Yes
  • Microphone: Yes

Package Contents:

  • ATN OTS 4T 640 2.5-25x Thermal Smart HD Monocular
  • USB-C Cable
  • Soft Carrying Case
  • Lens Cleaning Cloth

Additional information

Weight 4 lbs
Dimensions 15 × 8 × 6 in

2 reviews for ATN OTS 4T 640 2.5-20x Thermal Monocular

  1. edwin.schmitz

    Very effective for night hunting. Hogs light up in thick woods as bright spots at over 300 yards and allow me to get ready and quiet. Battery life is very good I keep it on for 10-11 hours and that isn’t the limit, not sure how long it will stay on, have not run it to the dead yet. It is lightweight and pocket. Long story short it has worked well for me thus far on 4 hunts, and became more important than my binoculars.

  2. trevor.rios

    Purchased this unit for predator hunting. And it works very well. The thermal sensor is really sensitive. The clarity is amazing. Gadget has a cool and user friendly menu. Features are simple and easy to use. I was shocked, but It can record videos with HD quality. You also can stream this video via WiFi or share it on social media. Absolutely unbelievable thing!

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