N-Vision Optics HALO-LR product image

N-Vision Optics HALO-LR

The HALO-LR is a thermal weapon sight made by N-Vision Optics and is part of the HALO series.


The HALO-LR packs a quality 50mm f/1.2 lens to capture thermal radiation. The field of view (FOV) on this thermal scope reads 9 x 7 degrees. It's equipped with a 4x digital zoom to capture additional details.

Inside the housing of the HALO-LR you'll find the (uncooled, 12µm) 640 by 480px sensor with a refresh rate of 60Hz. It's operating between the 7.5µm and 13.5µm wavelengths.

The dimensions of this thermal scope are 215 x 82 x 80mm (length/width/height) and weighs in at 800g. This device is rated IP67. It can withstand dust, shocks, water (splashes) and submersion under water.

The HALO-LR can be used for hunting, law enforcement and military operations.



  • Long range observation regardless of light level
  • 8 user selectable reticles
  • Electronic windage and elevation adjustments
  • Black hot/white hot, black/white edge detect polarity selections
  • Digital 2x and 4x zoom
  • High resolution throughout the entire field of view
  • Standard MIL-STD-1913 (Picatinny) rail mounting system
  • Nitrogen purged in order to prevent internal fogging and extend service life
  • State of the art impact-resistant engineered plastics housing


Lens50 mm
Diopter adjustment-6 +2
Optical zoom3.5 x
Digital zoom4 x
FOV (h/v)9 ° / 7 °
Focus rangeFixed focus
Thermal typeUncooled
Sensor resolution (h/v)640 pixels / 480 pixels
Pixel pitch12 µm
Spectral range7.5 µm / 13.5 µm
Display resolution (h/v)640 pixels / 480 pixels
Refresh rate60 Hz
Output screen colorFull color
Video formatsPAL, NTSC
Startup time4 seconds
Reticle details8 user selectable types
Dimensions (l/w/h)215 mm / 82 mm / 80 mm
Weight800 g
Number of batteries4
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 750 meters 187 meters 93 meters
Person 2638 meters 659 meters 329 meters
Vehicle 6388 meters 1597 meters 798 meters

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


N-Vision Optics HALO-LR
N-Vision Optics HALO-LR
N-Vision Optics HALO-LR
N-Vision Optics HALO-LR
N-Vision Optics HALO-LR

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