Armasight Helios 640 3-24x75 (30Hz) product image

Armasight Helios 640 3-24x75 (30Hz)

The HELIOS 640 3-24X75 (30HZ) is a thermal bi-ocular made by Armasight and is part of the Helios series.


The Helios 640 3-24x75 (30Hz) spots a clear 75mm f/1.3 objective lens collecting thermal radiation. The default field of view on this thermal bi-ocular measures 8.3 by 6.6 degrees. It has a 8 times digital zoom to enlarge (parts of) the image. It has an eye relief distance of 16mm and the exit pupil diameter measures 14mm.

Behind the lens of the Helios 640 3-24x75 (30Hz) you can find the (uncooled, 17 micrometer) 640 x 512 pixel microbolometer refreshing the image at 30Hz.

The measurements of this thermal bi-ocular read 258 x 100 x 68mm (l/w/h) and the scale reads 900 grams. It's protected against dust, shocks, water (splashes) and submersion under water. It handles temperatures between -40°C and 50°C.

The Helios 640 3-24x75 (30Hz) can be utilized in surveillance, law enforcement (police, border patrol etc.), SAR (Search and Rescue) operations and tactical operations.


  • User selectable NTSC or PAL format
  • Easy and Intuitive Drop-down user interface
  • Digital E-Zoom: 1x, 2x, 4x and 8x
  • Color Modes: White Hot/ Black Hot/ Rainbow/ Various Color modes
  • Extended operation time with optional external battery power supply
  • Recording: video output /optional Video Recorder with onboard replay
  • CNC machined aircraft-aluminum alloy construction
  • Rapid start-up
  • Limited 3-year warranty
  • 10-year warranty on FLIR detector
  • Made in The USA
Lens75 mm
Diopter adjustment-5 +5
Eye relief distance16 mm
Exit pupil diameter14 mm
Digital zoom8 x
FOV (h/v)8.3 ° / 6.6 °
Focus range10m to infinity
Thermal typeUncooled
Sensor resolution (h/v)640 pixels / 512 pixels
Pixel pitch17 µm
Display resolution (h/v)800 pixels / 600 pixels
Refresh rate30 Hz
Image polarityWhite Hot, Black Hot, Fusion, Rainbow, Globow, Ironbow 1, Ironbow 2, Sepia, Color 1, Color 2, Ice-Fire, Rain, and OEM Custom
Output screen colorFull color
Startup time3 seconds
Package contentsVideo Cable, Battery Cassette, Packing Box, Soft carrying Case, Two Lithium Battery CR123A, Instruction Manual with Warranty Card, AWReC (Advanced Wireless Remote Control) #94, Picatinny adapter for AWReC (Advanced Wireless Remote Control)
Dimensions (l/w/h)258 mm / 100 mm / 68 mm
Weight900 g
TypeCR123A 3V
Number of batteries2
Battery life4 hours
Operating temperature-40 °C / 50 °C
Storage temperature-50 °C / 70 °C
Law enforcement
Search & rescue
Fire fighting


Armasight Helios Series (75mm lens)
Armasight Helios Series (75mm lens)
Armasight Helios Series (75mm lens)
Armasight Helios Series (75mm lens)
Armasight Helios Series (75mm lens)
Armasight Helios Series (75mm lens)
Armasight Helios Series (75mm lens)


Part of Helios series