InfiRay Rico RH25 product image

InfiRay Rico RH25

The RICO RH25 is a thermal monocular made by InfiRay and is part of the Rico Micro series.


The Rico RH25 spots a clear 25mm f/1 objective lens collecting thermal radiation. The default field of view on this thermal monocular measures 17.2 by 13.7 degrees. It has a 4 times digital zoom to enlarge (parts of) the image. It has an eye relief distance of 35mm.

Behind the lens of the Rico RH25 you can find the (uncooled, 12 micrometer) 640 x 512 pixel microbolometer refreshing the image at 50Hz. The NETD of this thermal monocular is <40mK.

The measurements of this thermal monocular read 115 x 65 x 48mm (l/w/h) and the scale reads 360 grams. This device is rated IP67. It's protected against dust, shocks, water (splashes) and submersion under water. It handles temperatures between -40°C and 60°C.

The Rico RH25 can be utilized in surveillance, hunting trips, law enforcement (police, border patrol etc.) and SAR (Search and Rescue) operations.



  • Multi Purpose Device (Helmet, Monocular, Clip-On or Dedicated Weapon Sight)
  • Onboard Video Recording
  • Replaceable 18650 Battery
  • Compact and lightweight
  • AMOLED Display
  • IP67 Rated


Lens25 mm
Diopter adjustment-4 +4
Eye relief distance35 mm
Optical zoom1 x
Digital zoom4 x
FOV (h/v)17.2 ° / 13.7 °
Thermal typeUncooled
Sensor resolution (h/v)640 pixels / 512 pixels
Pixel pitch12 µm
Sensitivity40 mK
Display resolution (h/v)1024 pixels / 768 pixels
Refresh rate50 Hz
Video formatsAnalog RS-170/NTSC
Additional detailsAlso known as PFALCON-640
Dimensions (l/w/h)115 mm / 65 mm / 48 mm
Weight360 g
Number of batteries1
Battery life4 hours
Law enforcement
Search & rescue
Fire fighting
Operating temperature-40 °C / 60 °C
Environmental ratingIP67

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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