The Sii HM thermal monocular provides lightweight night-vision capabilities in a pocket scope for surveillance, perimeter security, search & rescue, and other applications on land or at sea. The Sii HM delivers high-resolution nighttime vision capabilities, enabling human target detection up to 1,000 meters and vehicle detection up to 2,500 meters. The Sii HM provides brighter and sharper images, day or night, in all security and civil operations. The Sii HM is an extra lightweight, highly portable device.



  • Extra lightweight & compact
  • Night vision capabilities & long range detection
  • Long battery life for uninterrupted operating performance
  • Compatible with standard picatinny rail mount


Why Sii HM?

With a compact design, and a variety of lenses, the Sii HM is the ideal choice for those who need an affordable lightweight portable thermal monocular. For more information or a quote, contact us today.

Electro-Mechanical Characteristics
Operating temperature-40° to +50°C (-40° to +122° F)
Power sourceBatteries/Rechargeable battery
Operating timeUp to 9 hours
Start up time<2 secs (5 secs shuttlerless version)
External power inputYes
External video outputYes
Output computer communicationYes
Weight Up to 550g
Imaging Characteristics
Resolution640 x 480/384 x 238, 17μm
Spectral response7 - 14μm
Frame rate60 Hz
Video outputPAL/NTSC
DisplayOLED Matrix, SVGA >852x600
Digital zoomx1, x2, x3, x4
Optical magnificationx4
Eye relief24mm
Lens size35mm
Reticle16 reticles, B/W, dynamic reticle
Polarity controlManual (white hot / black hot)
Human/animal recognition400m* (depending on atmospheric
Vehicle recognition800m* (depending on atmospheric
Image storage (Snapshots)Up to 200 images

*Based on Johnson’s calculation