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TI20 Fluke Thermal Imager


The TI20 is a thermal imager from Fluke. Thermal imaging scanners are perfect for easy, fast, and accurate troubleshooting and repairs. Professionals such as engineers, electrical technicians, and mechanics use thermal imaging test equipment to reveal high-quality images of the most minor temperature differences. Thermal imaging scanners from Fluke and HT Instruments enable professionals to identify potential problems by changes in temperature, energy loss, and moisture.


Thermal specs

  • Temperature range: -10° to 350°C (14º to 662ºF)
  • Detector type: 128 x 96 thermal element focal plane array (FPA) uncooled microbolometer
  • Accuracy: ±2% or ±2ºC whichever is greater
  • Accuracy (from -10 to 0 C): +/- 3ºC
  • Repeatability: ±1% or ±1ºC whichever is greater
  • NETD: ≤0.2 degrees C at 30 degrees C
  • Temperature indication resolution: 0.1 ºC


  • Spectral range: 7.5-14 microns
  • Target sighting: Single Laser Dot (Meets IEC Class 2 & FDA Class II requirements)
  • Optical resolution: 75:1
  • Minimum diameter measurement spot: 8.1mm (0.32) at 61cm (24)
  • Image Frame Rate: 30 Hz Standard US/ Canada (9Hz International)
  • Field of view (FOV): 20º horizontal x 15º vertical
  • Instantaneous field of view (IFOV): 2.73 mrad


  • Focus: Manual minimum focus distance spec: .15 m
  • Temperature Scale: ºC or ºF selectable
  • Palettes: Gray, Gray Reverse, Gray BR (Gray Red Blue), Ironbow, Rainbow, Hot Metal, High Contrast, Blue Red, Red, Amber
  • Measurement Modes: Automatic or manual selectable
  • Laser On/Off: Included
  • Gain Control: Included
  • Level Control: Included
  • LCD backlight: Bbright, dim selectable


  • Adjustable emissivity: 0.10 to 1.00 by 0.01
  • Liquid crystal display: TFT technology—optimized for both indoor and outdoor use, 70.5 mm (2.78 in) x 53.5 mm (2.1 in)
  • Reflected background temperature: -50 to 460ºC (-58 to 860ºF)
  • Ambient operating temperature: 0 º to 50 ºC (32 º to 122 º F)
  • Relative humidity: 10 to 90% non-condensing
  • Storage temperature: -25 to 70ºC (-13 º to 158 ºF) [without batteries]
  • Storage capacity: 100 images
  • Laser on icon: Included
  • Low battery icon: Included
  • Measurement mode icon: Included
  • Thermal analysis software: InsideIR (included)
  • PC Software operating systems: Microsoft Windows 2000® or Windows XP


  • Power: Rechargeable battery pack (included)
  • Battery life: Min. 3 hours continuous use
  • Data transfer: USB interface, total transfer time 25s for 50 pictures
  • Storage device: Flash memory


  • Tripod mount (6.35 mm (1/4) 20 unc threading)
  • Drop test results: 1 m (36 in.)
  • Shock: half-sine, 11 ms, 30 g peak per mil-prf-28800f
  • Vibration: Random: 6G; Sinusoidal: MIL PREF 28800 Class 2

Radiometric measurement – the ‘data behind the picture’

Fully radiometric thermal imagers capture and store calibrated temperature data for the matrix of thousands of points that make up a thermal image. This makes it possible to perform detailed analysis and change key parameters like emissivity or temperature range either in the field on the camera or in the office using the PC software.

The safe and easy way to identify problems and reduce unplanned down-time

  • Instantly provides non-contact temperature images to quickly determine hot spots
  • Fully radiometric for detailed temperature analysis and tracking of critical components
  • Complete solution with InsideIR software for analysis, reporting and routing
  • Large color LCD displays uncluttered image with data and routing instructions

High performance, designed for industrial use

Uses revolutionary detector technology to provide a clear thermal image while accurately measuring the temperature

  • Measures up to 350 °C (662 ºF) to cover a broad range of industrial applications
  • Protected against dust and moisture (IP54 rated) to withstand harsh industrial environments
  • Provides 3 hours continuous operation per battery charge

Easy to use

  • Fits comfortably in the hand thanks to weight-balanced design
  • Facilitates one-handed point-, shoot- and image capture operation
  • Assists fast inspections with clear on-screen step-by-step routing instructions

Complete solution offering lowest cost of ownership

  • Includes InsideIR software for unlimited use by every member of the maintenance team (no software license fees)
  • Comes complete with all necessary accessories and professional application training material to ensure a fast return on investment

Typical applications 

Some typical application areas of the Ti20 are:

  • Electrical power distribution systems: Like three-phase systems, distribution panels, fuses, wiring and connections
  • Electro-mechanical equipment: Like motors, pumps, bearing and gear boxes
  • Process instrumentation: Like process control equipment, pipes, valves, steam traps and vessels
  • Facility maintenance: Like HVAC systems, buildings and roofs

Maximizing return on investment 

Implementing a predictive maintenance program using the Fluke Ti20 can significantly reduce unplanned production downtime, resulting in better labor productivity, reduced scrap and smaller replacement part inventory. Establishing an effective IR predictive maintenance program is straightforward, and the InsideIR software facilitates creating inspection routes that can be uploaded to the instrument. With clear step-by-step on-camera routing instructions, any maintenance technician can perform the inspection.

Inspection routing – improving maintenance performance 

An inspection route details the sequence and physical route of equipment that needs to be inspected at regular intervals. The InsideIR software facilitates setting up such an inspection route using location names, inspection notes and key thermal image parameter data. This information can be uploaded to the imager for use as a routing guide. During an inspection, the on-camera instructions prompt the user through the series of locations to be scanned.

Powerful InsideIR Software 

The Fluke Ti20 comes with the powerful InsideIR software for storing and analyzing thermal images and creating professional reports. The software makes it possible to adjust key parameters in a stored image downloaded from the camera such as emissivity, reflected temperature compensation, level, gain, and color palette in the comfort, quiet and safety of the office. This not only improves inspection safety and convenience, but also makes it unnecessary to re-scan equipment if different settings are desired in a previously captured thermal image.

Complete package 

The Fluke Ti20 comes as a complete package. There is no need to buy additional tools to set up or expand a predictive maintenance program.

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