Guide IR TK621 product image

Guide IR TK621

The TK621 is a thermal monocular made by Guide IR and is part of the TK series.

Description

The TK621 packs a quality 25mm f/1 lens to capture thermal radiation. The field of view (FOV) on this thermal monocular reads 17.5 x 13.1 degrees. It's equipped with a 8x digital zoom to capture additional details. The exit pupil diameter is 10mm.

Inside the housing of the TK621 you'll find the (uncooled, 12µm) 640 by 480px sensor with a refresh rate of 50Hz. The NETD (Noise Equivalent Temperature Difference) of this thermal monocular is <30mK and it's operating between the 8µm and 14µm wavelengths.

The dimensions of this thermal monocular are 192 x 65 x 71mm (length/width/height) and weighs in at 490g. This device is rated IP66. It can withstand dust, shocks and water (splashes). Operating temperatures range between -10°C and 50°C.

The TK621 can be used for surveillance missions, hunting and law enforcement.

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Features

  • HD Display (1280 x 960 pixels)
  • Integrated Laser pointer with flashlight
  • Anti-Fog Eyepiece
  • Up to 8x Digital Zoom
  • PiP (Picture in Picture) mode
  • 6 color palettes
  • IP66 protection
  • Live streaming

Specifications

Lens25 mm
F-ratio1.0
Diopter adjustment-4 +2
Exit pupil diameter10 mm
Optical zoom1.5 x
Digital zoom8 x
FOV (h/v)17.5 ° / 13.1 °
Thermal typeUncooled
Sensor resolution (h/v)640 pixels / 480 pixels
Pixel pitch12 µm
Sensitivity30 mK
Spectral range8 µm / 14 µm
Display resolution (h/v)1280 pixels / 960 pixels
Refresh rate50 Hz
Image polarityBlack Hot, White Hot, Adjustable Red Hot, Iron Red, Blue Hot, Green Hot
Output screen colorFull color
Video formatsMicro HDMI Out
Startup time2 seconds
Package contentsPower adapter, USB cable (Type C), Micro HDMI cable, Lens cap, Wrist strap, , Shoulder strap, Quick start guide
Dimensions (l/w/h)192 mm / 65 mm / 71 mm
Weight490 g
Type18650
Number of batteries2
Battery life4.5 hours
Replaceable
Surveillance
Hunting
Law enforcement
Search & rescue
Military
Fire fighting
Thermography
Dustproof
Shockproof
Waterproof
Submersible
Operating temperature-10 °C / 50 °C
Storage temperature-30 °C / 60 °C
Environmental ratingIP66

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 375 meters 93 meters 46 meters
Person 1319 meters 329 meters 164 meters
Vehicle 3194 meters 798 meters 399 meters

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

Downloads

Spec sheet

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