Electrooptic Legat 335 product image

Electrooptic Legat 335

The LEGAT 335 is a thermal weapon sight made by Electrooptic and is part of the Legat 3 series.


The Legat 335 comes equipped with a clear 35mm f/1 lens to capture thermal signatures. The FOV on this thermal scope measures 12 x 8 degrees. It comes with a 4x digital zoom to get additional details. It has an eye relief distance of 52mm.

Inside the housing of the Legat 335 you'll find the (uncooled, 12µm) 384 by 288 pixel thermal sensor with a refresh rate of 50Hz. The NETD of this thermal scope is <45mK and it's operating between the 7µm - 14µm infrared wavelengths.

The measurements of this thermal scope are 165 x 64 x 52mm (l/w/h) and weighs 490g. This device is rated IPX6. It's protected against dust, shocks and water (splashes). It handles temperatures between -25°C and 50°C.

The Legat 335 is built for hunting trips and law enforcement (police, border patrol etc.).


  • Centered reticle during zooming
  • Scalable reticles
  • Six zeroing profiles
  • Picture-in-picture (PiP)
  • up to 4X (smooth) digital zoom
  • Completely digital signal with noise filtering


Lens35 mm
Diopter adjustment-4 +3
Eye relief distance52 mm
Optical zoom3.5 x
Digital zoom4 x
FOV (h/v)12 ° / 8 °
Focus range6m to infinity
Thermal typeUncooled
Sensor resolution (h/v)384 pixels / 288 pixels
Pixel pitch12 µm
Sensitivity45 mK
Spectral range7 µm / 14 µm
Display resolution (h/v)1024 pixels / 768 pixels
Refresh rate50 Hz
Image polarityFive color palettes
Output screen colorFull color
Package contents18650 battery, User manual, Carrying bag
Dimensions (l/w/h)165 mm / 64 mm / 52 mm
Weight490 g
Number of batteries1
Battery life6 hours
Operating temperature-25 °C / 50 °C
Environmental ratingIPX6
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 525 meters 131 meters 65 meters
Person 1847 meters 461 meters 230 meters
Vehicle 4472 meters 1118 meters 559 meters

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


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