Fortuna General 40M3 product image

Fortuna General 40M3

The GENERAL 40M3 is a thermal weapon sight made by Fortuna and is part of the General series.


The General 40M3 uses a quality 40mm f/1 lens to capture thermal radiation. The field of view (FOV) on this thermal scope reads 9.3 x 7 degrees. The eye relief distance is 25mm.

Inside the housing of the General 40M3 you'll find the (uncooled, 17µm) 384 by 288px thermal imaging sensor with a refresh rate of 50Hz. The NETD (Noise Equivalent Temperature Difference) of this thermal scope is <50mK and it's operating between the 7.4µm and 14µm wavelengths.

The dimensions of this thermal scope are 195 x 72 x 55mm (length/width/height) and weighs in at 580g. 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 40M3 is suitable for hunting, law enforcement and military operations.



  • Compact and lightweight
  • Aluminium rubberized body
  • Resistant to large caliber recoil
  • AMOLED display
  • IP67 rating
  • 4 user profiles
  • High-aperture lenses
  • Silent shutterless calibration
  • 3-button intuitive control
  • Video output


Lens40 mm
Diopter adjustment-5 +5
Eye relief distance25 mm
Optical zoom3.4 x
FOV (h/v)9.3 ° / 7.0 °
Focus range10m to infinity
Thermal typeUncooled
Sensor resolution (h/v)384 pixels / 288 pixels
Pixel pitch17 µm
Sensitivity50 mK
Spectral range7.4 µm / 14 µm
Display resolution (h/v)800 pixels / 600 pixels
Refresh rate50 Hz
Output screen colorFull color
Dimensions (l/w/h)195 mm / 72 mm / 55 mm
Weight580 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 423 meters 105 meters 52 meters
Person 1490 meters 372 meters 186 meters
Vehicle 3607 meters 901 meters 450 meters

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


Fortuna General
Fortuna General
Fortuna General
Fortuna General
Fortuna General
Fortuna General


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