ATN OTS LT 320 2-4X product image

ATN OTS LT 320 2-4X

The OTS LT 320 2-4X is a thermal monocular made by ATN and is part of the OTS LT series.


The OTS LT 320 2-4X spots a clear 19mm objective lens collecting thermal radiation. The default field of view on this thermal monocular measures 11.4 by 8.6 degrees. It has a 2 times digital zoom to enlarge (parts of) the image. It has an eye relief distance of 25mm.

Behind the lens of the OTS LT 320 2-4X you can find the (uncooled, 12 micrometer) 320 x 240 pixel microbolometer refreshing the image at 60Hz.

The measurements of this thermal monocular read 195 x 75 x 66mm (l/w/h) and the scale reads 560 grams. It's protected against dust, shocks and water (splashes). It handles temperatures between -28°C and 48°C.

The OTS LT 320 2-4X can be utilized in surveillance, hunting trips, law enforcement (police, border patrol etc.) and SAR (Search and Rescue) operations.


  • Ergonomic Design
  • ATN Obsidian LT core
  • Long Lasting Internal Battery
  • USB Type-C connection
Lens19 mm
Eye relief distance25 mm
Optical zoom2 x
Digital zoom2 x
FOV (h/v)11.4 ° / 8.6 °
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

Part of OTS LT series