Electrooptic STRIX 335 product image

Electrooptic STRIX 335

The STRIX 335 is a thermal monocular made by Electrooptic and is part of the STRIX 3 series.


The STRIX 335 packs a quality 35mm f/1 lens to capture thermal radiation. The field of view (FOV) on this thermal monocular reads 12 x 8 degrees. It's equipped with a 4x digital zoom to capture additional details. The exit pupil diameter is 30mm.

Inside the housing of the STRIX 335 you'll find the (uncooled, 12µm) 384 by 288px sensor with a refresh rate of 50Hz. The NETD (Noise Equivalent Temperature Difference) of this thermal monocular is <40mK and it's operating between the 8µm and 14µm wavelengths.

The dimensions of this thermal monocular are 160 x 80 x 65mm (length/width/height) and weighs in at 580g. This device is rated IPX6. It can withstand dust, shocks and water (splashes). Operating temperatures range between -20°C and 50°C.

The STRIX 335 can be used for surveillance missions, hunting, law enforcement and search and rescue operations.


  • Picture in Picture (PiP)
  • 5 color palettes
  • Record videos to microSD card
  • Up to 4x smooth digital zoom
  • Advanced image processing
  • Store up to 6 user profiles


Lens35 mm
Diopter adjustment-4 +3
Exit pupil diameter30 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
Sensitivity40 mK
Spectral range8 µm / 14 µm
Display resolution (h/v)1024 pixels / 768 pixels
Refresh rate50 Hz
Image polarity5 color palettes
Output screen colorFull color
Package contents18650 battery, MicroSD card, soft cleaning tissue, manual, carrying bag
Dimensions (l/w/h)160 mm / 80 mm / 65 mm
Weight580 g
Number of batteries1
Battery life5 hours
Law enforcement
Search & rescue
Fire fighting
Operating temperature-20 °C / 50 °C
Environmental ratingIPX6

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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