Fusion Thermal Boarmaster 40 product image

Fusion Thermal Boarmaster 40

The BOARMASTER 40 is a thermal weapon sight made by Fusion Thermal and is part of the Boarmaster series.


The Boarmaster 40 spots a clear 40mm objective lens collecting thermal radiation. It has a 4 times digital zoom to enlarge (parts of) the image.

Behind the lens of the Boarmaster 40 you can find the (uncooled, 17 micrometer) 384 x 288 pixel microbolometer refreshing the image at 50Hz.

The measurements of this thermal weapon sight read 30 x 30 x 30mm (l/w/h) and the scale reads 519 grams. It's protected against dust, shocks, water (splashes) and submersion under water.

The Boarmaster 40 can be utilized in hunting trips and law enforcement (police, border patrol etc.).



  • T3 – Three Button Control System
  • KISS (Keep It Simple Stupid) Operating Menu
  • WAVE17 – 384×288 Premium 17-Micron Thermal Sensor
  • Arclight – 40mm Ultra HD Objective Lens
  • XGEN – Next Generation Alloy Housing
  • Huge Field-of-View – Perfect for Scattering Hogs
  • Micro Click Focus – Fast Click-by-Click Precision Focus
  • Blazing Fast 6 Second Start-Up Time
  • Premium QD Tactical Scope Mount
  • Five Year Transferable Warranty
  • Made in the European Union


Lens40 mm
Optical zoom2.5 x
Digital zoom4 x
Thermal typeUncooled
Sensor resolution (h/v)384 pixels / 288 pixels
Pixel pitch17 µm
Display resolution (h/v)1080 pixels / 960 pixels
Refresh rate50 Hz
Image polarityWhite hot, black hot, red hot, rainbow
Output screen colorFull color
Video formatsVideo via USB-C port
Startup time6 seconds
Reticle details7 reticle options (in 5 colors)
Dimensions (l/w/h)30 mm / 30 mm / 30 mm
Weight519 g
TypeCR123A 3V
Number of batteries2
Battery life4 hours
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 423 meters 105 meters 52 meters
Person 1490 meters 372 meters 186 meters
Vehicle 3607 meters 901 meters 450 meters

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


Fusion Thermal Boarmaster 40
Fusion Thermal Boarmaster 40
Fusion Thermal Boarmaster 40
Fusion Thermal Boarmaster 40


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