Guide IR TU620 product image

Guide IR TU620

The TU620 is a thermal weapon sight made by Guide IR and is part of the TU series.


The TU620 contains a crisp 25mm f/1 objective lens focusing the available thermal radiation. The field of view on this thermal weapon sight is 17.46 by 13.14 degrees. It features a 8 times digital zoom to enlarge your subject. The exit pupil diameter measures 48mm.

Behind the lens of the TU620 you can find the (uncooled, 12 micrometer) 640 x 480 pixels core refreshing the image at 50Hz. The thermal contrast (NETD) of this thermal weapon sight is <30mK and it's operating within the 8µm to 14µm infrared spectrum.

The physical dimensions of this thermal weapon sight read 367 x 107 x 69mm (lwh) weighing in at 980 grams. This device is rated IP67. It handles dust, shocks, water (splashes) and submersion under water. It's rated for operating in temperatures between -30°C and 50°C.

The TU620 can be used in hunting adventures and police operations.



  • High Contrast OLED display
  • Smooth Zoom
  • Six color palettes
  • Live Video Streaming
  • Ultra Long Battery Life
  • IP67 Rated


Lens25 mm
Diopter adjustment-4 +4
Exit pupil diameter48 mm
Optical zoom1.4 x
Digital zoom8 x
FOV (h/v)17.46 ° / 13.14 °
Thermal typeUncooled
Sensor resolution (h/v)640 pixels / 480 pixels
Pixel pitch12 µm
Sensitivity30 mK
Spectral range8 µm / 14 µm
Display resolution (h/v)1024 pixels / 768 pixels
Refresh rate50 Hz
Image polarityWhite Hot, Black Hot, adjustable Red Hot , Green Hot, Iron Red, Blue Hot
Output screen colorFull color
Startup time18 seconds
Reticle details10 variations in 6 colors
Rail detailsStandard 30 mm Scope Rings
Package contentsUSB Type-C cable, Lens cap, 5V2A adapter, Customized battery, Customized battery charger, Micro HDMI cable, Eye mask, Picatinny rail clips (x2) , Quick start guide
Dimensions (l/w/h)367 mm / 107 mm / 69 mm
Weight980 g
Number of batteries1
Battery life5 hours
Operating temperature-30 °C / 50 °C
Storage temperature-45 °C / 70 °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 375 meters 93 meters 46 meters
Person 1319 meters 329 meters 164 meters
Vehicle 3194 meters 798 meters 399 meters

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

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