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Fluke CLKT Infrared Windows are Available in Three Sizes 50 mm (2 in), 75 mm (3 in) and 100 mm (4 in) Each CLKT infrared window is engineered and tested to withstand electric-arcs up to 50 kA for 30 cycles. The ClirVu® coating - exclusive to Fluke infrared windows - seals the optic prior to assembly to protect against moisture degradation making it perfect for very hot and very cold outdoor environments. Each Fluke infrared window is delivered with an identification plate attached for unique, on-site numbering for rapid location confirmation and faster repairs. CLKT infrared windows come complete with a security access key, installation instructions and self-adhesive drilling template. For 5 minute or less installation and Autoground consider the CV300.


  • Choose the thermal camera that gives you in-focus images in a matter of seconds. LaserSharp™ Auto Focus uses a built-in laser distance meter that calculates and displays the distance from your designated target and immediately adjusts the focus.
  • See small details in the image and discover anomalies faster with 640 x 480 resolution thermal images
  • On the thermal camera, adjust the level of infrared and visible light with patented IR-Fusion™ technology
  • Manage data, capture multiple measurements (mechanical, electrical and thermal) and organize them by piece of equipment with Fluke Connect™ software
  • Simply the best optics to transmit energy and produce high quality infrared images. Fluke thermal cameras use only 100% diamond-turned germanium lenses with specialty coatings.
  • Subject to Export Control


  • Continuous touchscreen IR-Fusion™
  • 5 hours battery life
  • Can withstand drop up to 2 meter
  • Water and dust resistant—IP54 enclosure rating
  • Automatically organize and file thermal images with Fluke Connect™ Asset Tagging
  • 120 x 90 infrared resolution


  • MATLAB® and LabVIEW® software compatibility allows users to integrate infrared data, images and videos to support R&D analysis
  • 320 x 240 resolution
  • See the details you need with optional smart lenses: 2x and 4x telephoto, wide angle and macro lenses
  • Optimize images, generate customizable reports and export images to the format of your choice with SmartView® desktop software
  • Wirelessly connect your camera to the Fluke Connect® system to easily share and edit images


  • Rugged, reliable basic True-RMS clamp meter
  • Measure AC current up to 400 A, AC/DC voltage to 600V
  • Measure resistance up to 4kΩ, continuity detection ≤ 30Ω
  • Additions from 323 Clamp: Temperature, Capacitance, Backlight