Fortuna General One 3XL product image

Fortuna General One 3XL

The GENERAL ONE 3XL is a thermal weapon sight made by Fortuna and is part of the General One series.


The General One 3XL uses a quality 100mm f/1 lens to capture thermal radiation. The field of view (FOV) on this thermal scope reads 3.7 x 2.8 degrees. It's equipped with a 4x digital zoom to capture additional details. The eye relief distance is 52mm.

Inside the housing of the General One 3XL you'll find the (uncooled, 17µm) 384 by 288px thermal imaging sensor with a refresh rate of 50Hz. It's operating between the 7.5µm and 14µm wavelengths.

The dimensions of this thermal scope are 290 x 116 x 116mm (length/width/height) and weighs in at 1237g. This device is rated IP67. It can withstand dust, shocks, water (splashes) and submersion under water. Operating temperatures range between -30°C and 50°C.

The General One 3XL is suitable for hunting, law enforcement and military operations.



  • Powerful high-aperture lens
  • Silent shutterless calibration
  • Aluminum alloy housing
  • Resistant to large caliber recoil
  • Up to 10 editable, quick-switchable zeroing profiles
  • Up to 8x digital zoom
  • Multiple color palettes
  • Compatible with power banks
  • Video output
  • Compatible with Fortuna LRF


Lens100 mm
Diopter adjustment-5 +5
Eye relief distance52 mm
Optical zoom7.1 x
Digital zoom4 x
FOV (h/v)3.7 ° / 2.8 °
Focus range10m to infinity
Thermal typeUncooled
Sensor resolution (h/v)384 pixels / 288 pixels
Pixel pitch17 µm
Spectral range7.5 µm / 14 µm
Display resolution (h/v)800 pixels / 600 pixels
Refresh rate50 Hz
Output screen colorFull color
Dimensions (l/w/h)290 mm / 116 mm / 116 mm
Weight1237 g
Number of batteries2
Battery life5 hours
Operating temperature-30 °C / 50 °C
Environmental ratingIP67
Law enforcement
Search & rescue
Fire fighting

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 1058 meters 264 meters 132 meters
Person 3725 meters 931 meters 465 meters
Vehicle 9019 meters 2254 meters 1127 meters

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


Fortuna General One
Fortuna General One
Fortuna General One


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