InfiRay Rico RL42 product image

InfiRay Rico RL42

The RICO RL42 is a thermal weapon sight made by InfiRay and is part of the Rico series.


The Rico RL42 features a crisp 42mm f/1.1 objective lens focusing the available thermal radiation. The field of view on this thermal weapon sight is 7.5 by 5.7 degrees. It features a 4 times digital zoom to enlarge your subject. The eye relief distance is measured at 55mm and the exit pupil diameter measures 6mm.

Behind the lens of the Rico RL42 you can find the (uncooled, 12 micrometer) 384 x 288 pixels thermal core refreshing the image at 50Hz. The thermal contrast (NETD) of this thermal weapon sight is <50mK.

The physical dimensions of this thermal weapon sight read 250 x 65 x 58mm (lwh) weighing in at 830 grams. This device is rated IP67. It handles dust, shocks, water (splashes) and submersion under water.

The Rico RL42 is built to be used in hunting adventures and police operations.



  • AMOLED Micro Display
  • Picture-in-Picture (PIP)
  • High Shock Resistance
  • 12 µm Thermal Imaging Sensor
  • Optional LRF module
  • Replaceable Battery Pack
  • Video Recording
  • Accelerometer and Digital Compass


Lens42 mm
Eye relief distance55 mm
Exit pupil diameter6 mm
Optical zoom4 x
Digital zoom4 x
FOV (h/v)7.5 ° / 5.7 °
Thermal typeUncooled
Sensor resolution (h/v)384 pixels / 288 pixels
Pixel pitch12 µm
Sensitivity50 mK
Display resolution (h/v)1024 pixels / 768 pixels
Refresh rate50 Hz
Output screen colorFull color
Dimensions (l/w/h)250 mm / 65 mm / 58 mm
Weight830 g
TypeLi-ion 3.7V
Number of batteries1
Battery life6 hours
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 630 meters 157 meters 78 meters
Person 2216 meters 554 meters 277 meters
Vehicle 5366 meters 1341 meters 670 meters

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


InfiRay Rico Series
InfiRay Rico Series
InfiRay Rico Series
InfiRay Rico Series
 InfiRay Rico series

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