ATN OTS 4T 640 1.5-15X product image

ATN OTS 4T 640 1.5-15X

The OTS 4T 640 1.5-15X is a thermal monocular made by ATN and is part of the OTS 4T series.

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The OTS 4T 640 1.5-15X spots a crisp 25mm objective lens collecting thermal radiation. The default field of view on this thermal monocular is 24 by 19 degrees. It has a 10 times digital zoom to enlarge (parts of) the image. The eye relief distance is measured at 25mm.

Behind the lens of the OTS 4T 640 1.5-15X you can find the (uncooled) 640 x 480 pixels core refreshing the image at 60Hz.

The physical dimensions of this thermal monocular read 220 x 80 x 75mm (lwh) and the scale reads 850 grams. It handles dust, shocks and water (splashes).

The OTS 4T 640 1.5-15X can be used in scanning and surveillance, hunting adventures, police operations and search and rescue.


  • Video recording
  • WiFi Streaming
  • Smart Range Finder
  • Dual Core Processor
  • Ultra Low Power Consumption
  • Smooth Zoom
Lens25 mm
Eye relief distance25 mm
Optical zoom1.5 x
Digital zoom10 x
FOV (h/v)24 ° / 19 °
Thermal typeUncooled
Sensor resolution (h/v)640 pixels / 480 pixels
Display resolution (h/v)1280 pixels / 720 pixels
Refresh rate60 Hz
Output screen colorFull color
Dimensions (l/w/h)220 mm / 80 mm / 75 mm
Weight850 g
Number of batteries1
Battery life16 hours
Law enforcement
Search & rescue
Fire fighting

Part of OTS 4T series