Armasight Prometheus-Pro 640 2-16x50 (60 Hz) product image

Armasight Prometheus-Pro 640 2-16x50 (60 Hz)

The PROMETHEUS-PRO 640 2-16X50 (60 HZ) is a thermal monocular made by Armasight and is part of the Prometheus Pro series.


The Prometheus-Pro 640 2-16x50 (60 Hz) features a crisp 50mm f/1.4 objective lens focusing the available thermal radiation. The field of view on this thermal monocular is 12.5 by 10 degrees. It features a 8 times digital zoom to enlarge your subject. The eye relief distance is measured at 25mm and the exit pupil diameter measures 14mm.

Behind the lens of the Prometheus-Pro 640 2-16x50 (60 Hz) you can find the (cooled, 17 micrometer) 640 x 512 pixels thermal core refreshing the image at 60Hz.

The physical dimensions of this thermal monocular read 197 x 76 x 76mm (lwh) weighing in at 950 grams. It handles dust, shocks, water (splashes) and submersion under water. It's rated for operating in temperatures between -51°C and 57°C.

The Prometheus-Pro 640 2-16x50 (60 Hz) is built to be used in scanning and surveillance, hunting adventures, police operations, search and rescue and military missions.



  • MIL-STD-810 compliant performance
  • Operates on 123A or AA batteries
  • SVGA 800x600 OLED Display
  • Digital Compass
  • Digital Inclinometer
  • Various Color Palettes
  • Wireless remote control
  • Up to 8x digital zoom (640x512 only)
  • Made in the USA


Lens50 mm
Diopter adjustment-5 +5
Eye relief distance25 mm
Exit pupil diameter14 mm
Digital zoom8 x
FOV (h/v)12.5 ° / 10 °
Focus range5m to infinity
Thermal typeCooled
Sensor resolution (h/v)640 pixels / 512 pixels
Pixel pitch17 µm
Display resolution (h/v)800 pixels / 600 pixels
Refresh rate60 Hz
Image polarityWhite Hot, Black Hot, Sepia, Fusion, Rainbow, and Rain
Output screen colorFull color
Startup time3 seconds
Package contentsVideo Cable, Packing Box, Battery Cartridge (for AA batteries), Battery Box Extender Ring (for AA batteries), Armasight Key (used to remove the battery cap insert), AWReC (Advanced Wireless Remote Control 5-buttons, Battery Set, Lens Tissue, Instruction Manual with Warranty Card, Picatinny adapter for AWReC (Advanced Wireless Remote Control)
Dimensions (l/w/h)197 mm / 76 mm / 76 mm
Weight950 g
Type CR123A 3V Lithium batteries or AA 1.5V
Number of batteries4
Battery life7 hours
Law enforcement
Search & rescue
Fire fighting
Operating temperature-51 °C / 57 °C
Storage temperature-57 °C / 85 °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 529 meters 132 meters 66 meters
Person 1862 meters 465 meters 232 meters
Vehicle 4509 meters 1127 meters 563 meters

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


Armasight Prometheus Pro Series (50mm lens)


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