Night Optics USA Micro 2 640 (20mm) product image

Night Optics USA Micro 2 640 (20mm)

The MICRO 2 640 (20MM) is a thermal monocular made by Night Optics USA and is part of the Micro 2 series.


The Micro 2 640 (20mm) comes equipped with a clear 20mm f/1 lens to capture thermal signatures. The FOV on this thermal monocular measures 8 x 11 degrees. It comes with a 4x digital zoom to get additional details. It has an eye relief distance of 25mm.

Inside the housing of the Micro 2 640 (20mm) you'll find the (uncooled) 640 by 480 pixel thermal sensor with a refresh rate of 30Hz. It's operating between the 7.5µm - 13.5µm infrared wavelengths.

The measurements of this thermal monocular are 108 x 60 x 64mm (l/w/h) and weighs 300g. It's protected against dust, shocks and water (splashes). It handles temperatures between -40°C and 55°C.

The Micro 2 640 (20mm) is built for surveillance, hunting trips, law enforcement (police, border patrol etc.) and SAR (Search and Rescue) operations.


  • Ultra Compact
  • 20mm Focusable Optics
  • 640x480 Resolution
  • Built-in Accelerometer
  • Image Brightness Control
  • Simple Menu
  • 30 Hz Refresh Rate
  • 1x, 2x, 4x Magnification
  • 800x600 AMOLED Display
  • 4 Polarity Options
  • Video Out/External Power
  • Rugged & Lightweight
  • Mountable
Lens20 mm
Diopter adjustment+2 to -6
Eye relief distance25 mm
Optical zoom1 x
Digital zoom4 x
FOV (h/v)8 ° / 11 °
Focus range8m to infinity
Thermal typeUncooled
Sensor resolution (h/v)640 pixels / 480 pixels
Spectral range7.5 µm / 13.5 µm
Display resolution (h/v)800 pixels / 600 pixels
Refresh rate30 Hz
Image polarityBlack Hot / White Hot
Output screen colorFull color
Package contentsMicro 2 Thermal Monocular, Mount, Objective Cover, Rubber Eyecup, Video/Power Cables, Storage Pouch, (1) CR123 Battery, Lens Cleaning Cloth, Operating Manual
Dimensions (l/w/h)108 mm / 60 mm / 64 mm
Weight300 g
TypeCR123 3V
Number of batteries1
Battery life2 hours
Law enforcement
Search & rescue
Fire fighting
Operating temperature-40 °C / 55 °C

Part of Micro 2 series