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Guide Infrared IR521


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Product Description

The IR521 Thermal Imaging Biocular features a 800x600 17µm thermal sensor & image enhancement for performance imaging combined with a 50Hz refresh rate and a 1280x1024 HD OLED display resulting in a smooth & crisp viewing experience.

The biocular design (Single objective lens and two optical lenses) offers the practicality of a monocular combined with the comfort (reduced eye-fatigue) of using a binocular.

Features a built-in laser rangefinder (eye safe) for accurately measuring the distances of subjects in the field.

The unit has a battery pack with an operating time over 5 hours.

The IR521 can also connect to a smartphone via a dedicated App, this allows the unit to be operated remotely, share captured photos & videos as well as be live viewed.


  • Thermal Sensor: 800x600 17µm
  • Detection Range: 2000m
  • Field of View: 10.5°×8.4°
  • Digital Zoom: 2x
  • Display: 1280x1024 HD OLED
  • Dioptre Control: Yes
  • Laser Rangefinder: Built-In (Eye safe)
  • Wi-Fi: Built-In
  • Colour Modes: White hot, Black hot, Red hot, Green hot
  • Photo & Video Recorder: Built-In
  • Video Storage: Built-In, 16GB (Photo & Video - JPG & AVI)
  • Power: 18650 Battery or 12V power adaptor
  • Operation Time: >5hrs
  • Operation Temperature: -40℃ to 60℃
  • Protection Rating: IP67
  • Weight: 2.5kg
  • Dimensions: 240x250x115m

Additional Functions

  • Long detection range
  • HD Display
  • Built-In laser rangefinder (eye safe)
  • Built-In photo & video recorder
  • Multiple colour modes
  • long operation time
  • High protection rating
  • Wi-Fi capable
  • GPS
  • Digital compass
  • Large eyecups
  • Rugged design
  • Multiple neck strap points
  • Image enhancement
  • Internal memory

Model Product Code Thermal Sensor Frame Rate Digital Zoom F.O.V Detection Range* View Finder Dimensions
IR521 GUI-IR521 800x600
50Hz 2x 10.5°x8.4° 2000m 1920x1080
*Man Sized Objects