Leica Calonox Sight product image

Leica Calonox Sight

The CALONOX SIGHT is a thermal clip-on made by Leica and is part of the Calonox series.


The Calonox Sight features a crisp 42mm objective lens focusing the available thermal radiation. The field of view on this thermal clip-on is 8.9 by 6.7 degrees.

Behind the lens of the Calonox Sight you can find the (uncooled, 17 micrometer) 384 x 288 pixels thermal core refreshing the image at 50Hz.

The physical dimensions of this thermal clip-on read 165 x 65 x 65mm (lwh) weighing in at 685 grams. This device is rated IP67. It handles dust, shocks, water (splashes) and submersion under water. It's rated for operating in temperatures between -20°C and 50°C.

The Calonox Sight is built to be used in hunting adventures.



  • Can be used as clip-on or spotting scope
  • Companion App to allow wireless control
  • 1024 x 768 OLED display
  • 2000 meter detection range
  • Optimized image algorithm (LIO)


Lens42 mm
Optical zoom1 x
FOV (h/v)8.9 ° / 6.7 °
Thermal typeUncooled
Sensor resolution (h/v)384 pixels / 288 pixels
Pixel pitch17 µm
Display resolution (h/v)1024 pixels / 768 pixels
Refresh rate50 Hz
Output screen colorFull color
Video formatsPAL
Package contentsCordura case, charging cable, carry strap, quick start guide, lens cleaning cloth, rubber eyecup, certificate
Dimensions (l/w/h)165 mm / 65 mm / 65 mm
Weight685 g
Number of batteries1
Battery life8 hours
Operating temperature-20 °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 444 meters 111 meters 55 meters
Person 1564 meters 391 meters 195 meters
Vehicle 3788 meters 947 meters 473 meters

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


Weapon mounted
Image quality 1
Image quality 2
Image quality 3
Companion App
Product detail


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