ATN OTS LT 320 6-12X product image

ATN OTS LT 320 6-12X

The OTS LT 320 6-12X is a thermal monocular made by ATN and is part of the OTS LT series.


The OTS LT 320 6-12X uses a quality 35mm lens to capture thermal radiation. The field of view (FOV) on this thermal monocular reads 4.5 x 3 degrees. It's equipped with a 2x digital zoom to capture additional details. The eye relief distance is 25mm.

Inside the housing of the OTS LT 320 6-12X you'll find the (uncooled, 12µm) 320 by 240px thermal imaging sensor with a refresh rate of 60Hz.

The dimensions of this thermal monocular are 195 x 75 x 66mm (length/width/height) and weighs in at 560g. It can withstand dust, shocks and water (splashes). Operating temperatures range between -28°C and 48°C.

The OTS LT 320 6-12X is suitable for surveillance missions, hunting, law enforcement and search and rescue operations.



  • Ergonomic Design
  • ATN Obsidian LT core
  • Long Lasting Internal Battery
  • USB Type-C connection


Lens35 mm
Eye relief distance25 mm
Optical zoom6 x
Digital zoom2 x
FOV (h/v)4.5 ° / 3 °
Thermal typeUncooled
Sensor resolution (h/v)320 pixels / 240 pixels
Pixel pitch12 µm
Display resolution (h/v)1280 pixels / 960 pixels
Refresh rate60 Hz
Image polarityWhite hot, black hot
Output screen colorFull color
Package contentsSoft carrying case, USB-C Cable, Lens tissue
Dimensions (l/w/h)195 mm / 75 mm / 66 mm
Weight560 g
Number of batteries1
Battery life9 hours
Law enforcement
Search & rescue
Fire fighting
Operating temperature-28 °C / 48 °C

DRI Ranges

DRI stands for Detection, Recognition and Identification and is based on the widely used Johnson's criteria.

  • Detection Detect if an object is present
  • Recognition See what type of object it is (i.e. person, vehicle, airplane)
  • Identification For example see if someone is a friend or foe
Detection Recognition Identification
Rabbit 525 meters 131 meters 65 meters
Person 1847 meters 461 meters 230 meters
Vehicle 4472 meters 1118 meters 559 meters

Please note that these values are calculated, always consult the manufacturer for official range numbers.

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