ATN OTS-X-S650 2.5X (9Hz) product image

ATN OTS-X-S650 2.5X (9Hz)

The OTS-X-S650 2.5X (9HZ) is a thermal monocular made by ATN and is part of the OTS-X series.


The OTS-X-S650 2.5X (9Hz) features a crisp 50mm objective lens focusing the available thermal radiation. The field of view on this thermal monocular is 14 degrees. It features a 20 times digital zoom to enlarge your subject. The eye relief distance is measured at 27mm.

Behind the lens of the OTS-X-S650 2.5X (9Hz) you can find the (uncooled) 640 x 512 pixels thermal core refreshing the image at 9Hz. The thermal contrast (NETD) of this thermal monocular is <50mK and it's operating within the 7µm to 14µm infrared spectrum.

The physical dimensions of this thermal monocular read 165 x 61 x 83mm (lwh) weighing in at 640 grams. It handles dust, shocks, water (splashes) and submersion under water.

The OTS-X-S650 2.5X (9Hz) is built to be used in scanning and surveillance, hunting adventures, police operations and military missions.


  • Ergonomic Design
  • Color Modes
  • Interchangeable Optics
  • Digital Brightness Control
  • Icon Based Menu System
  • Waterproof
  • 2.5x magnification
  • Made in USA
Lens50 mm
Diopter adjustment-1.5
Eye relief distance27 mm
Optical zoom2.5 x
Digital zoom20 x
FOV (h/v)14 ° / 14 °
Thermal typeUncooled
Sensor resolution (h/v)640 pixels / 512 pixels
Sensitivity50 mK
Spectral range7 µm / 14 µm
Display resolution (h/v)800 pixels / 600 pixels
Refresh rate9 Hz
Image polarityWhite hot / Black hot / Multiple Color Modes
Output screen colorFull color
Startup time4 seconds
Package contentsSoft carrying Case, Warranty card, One Lithium Battery, Lens Tissue, Instruction Manual
Dimensions (l/w/h)165 mm / 61 mm / 83 mm
Weight640 g
Type CR123A
Number of batteries1
Battery life3 hours
Law enforcement
Search & rescue
Fire fighting


ATN OTS-X Series (50 mm lens)
ATN OTS-X Series (50 mm lens)
ATN OTS-X Series (50 mm lens)
ATN OTS-X Series (50 mm lens)
ATN OTS-X Series (50 mm lens)
ATN OTS-X Series (50 mm lens)


Part of OTS-X series