FLIR Scout III 640 product image

FLIR Scout III 640

The SCOUT III 640 is a thermal monocular made by FLIR and is part of the Scout III series.


The Scout III 640 uses a quality 35mm lens to capture thermal radiation. The field of view (FOV) on this thermal monocular reads 18 x 14 degrees. It's equipped with a 4x digital zoom to capture additional details.

Inside the housing of the Scout III 640 you'll find the (uncooled) 640 by 512px sensor with a refresh rate of 30Hz.

The dimensions of this thermal monocular are 170 x 59 x 62mm (length/width/height) and weighs in at 340g. This device is rated IP-67. It can withstand dust, shocks, water (splashes) and submersion under water. Operating temperatures range between -20°C and 50°C.

The Scout III 640 can be used for surveillance missions, hunting and law enforcement.


  • Detects heat signatures up to 1200 yards away, depending on model
  • High speed 60Hz or 30Hz frame rate displays lifelike thermal video
  • Crisp, clear 640 x 480 display screen
  • Easy-to-use buttons: Power, color palettes, E-Zoom and screen brightness
  • Single hand operation
  • Light weight, only 12 ounces
  • Weather-tight, ergonomic design
  • >5-hour Internal Li-Ion battery
Lens35 mm
Optical zoom1 x
Digital zoom4 x
FOV (h/v)18 ° / 14 °
Thermal typeUncooled
Sensor resolution (h/v)640 pixels / 512 pixels
Display resolution (h/v)640 pixels / 480 pixels
Refresh rate30 Hz
Image polarityBlack Hot, White Hot, InstAlert™ and Graded Fire
Output screen colorFull color
Startup time1 seconds
Package contentsUSB Power Adapter/Charger,Wrist strap, Custom Video out cable (320 & 640 version), USB Cable, Quick Start Guide, Molle bag
Dimensions (l/w/h)170 mm / 59 mm / 62 mm
Weight340 g
TypeInternal Li-Ion
Number of batteries1
Battery life5 hours
Law enforcement
Search & rescue
Fire fighting
Operating temperature-20 °C / 50 °C
Storage temperature-40 °C / 60 °C
Environmental ratingIP-67


FLIR Scout III Series
FLIR Scout III Series
FLIR Scout III Series
FLIR Scout III Series
FLIR Scout III Series
FLIR Scout III Series
FLIR Scout III Series
FLIR Scout III Series


Part of Scout III series