Bering Optics HOGSTER-R 25mm product image

Bering Optics HOGSTER-R 25mm

The HOGSTER-R 25MM is a thermal weapon sight made by Bering Optics and is part of the HOGSTER-R series.


The HOGSTER-R 25mm uses a quality 25mm f/1.1 lens to capture thermal radiation. The field of view (FOV) on this thermal scope reads 14.9 x 11.2 degrees. It's equipped with a 4x digital zoom to capture additional details. The eye relief distance is 40mm.

Inside the housing of the HOGSTER-R 25mm you'll find the (uncooled, 17µm) 384 by 288px thermal imaging sensor with a refresh rate of 50Hz. The NETD (Noise Equivalent Temperature Difference) of this thermal scope is <50mK.

The dimensions of this thermal scope are 180 x 72 x 60mm (length/width/height) and weighs in at 466g. This device is rated IP67. It can withstand dust, shocks and water (splashes). Operating temperatures range between -25°C and 50°C.

The HOGSTER-R 25mm is suitable for hunting and law enforcement.


  • Picture-in-Picture (PiP)
  • Stadiametric Rangefinder
  • Video Out
  • Save zeroing calibration data
  • Manual brightness / sharpness control
  • Precise lens focusing
  • Standby mode


Lens25 mm
Diopter adjustment-5 +5
Eye relief distance40 mm
Optical zoom1.4 x
Digital zoom4 x
FOV (h/v)14.9 ° / 11.2 °
Focus range0.5m to infinity
Thermal typeUncooled
Sensor resolution (h/v)384 pixels / 288 pixels
Pixel pitch17 µm
Sensitivity50 mK
Display resolution (h/v)1280 pixels / 960 pixels
Refresh rate50 Hz
Image polarityWhite hot, black hot, red hot, colored hot
Output screen colorFull color
Startup time5 seconds
Reticle detailsFour reticle patterns with 4 color options
Package contentsVideo-out cable, weapon Mount, 2 CR123 batteries, protective cap, eye piece guard, Soft carrying case, lens cleaning cloth, manual
Dimensions (l/w/h)180 mm / 72 mm / 60 mm
Weight466 g
Number of batteries2
Battery life4 hours
Operating temperature-25 °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 264 meters 66 meters 33 meters
Person 931 meters 232 meters 116 meters
Vehicle 2254 meters 563 meters 281 meters

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

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