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Testo 875

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The Testo 875 series thermal imaging cameras have a 9 Hz or 33 Hz refresh rate and are suitable for HVAC, electrical, mechanical and building thermal surveys as well as a wide range of other applications.

Available in four different configurations as well as the option of SuperResolution technology which improves the image quality from 160 x 120 pixels to 320 x 240 pixels.

Product Features

  • 3 model types
  • Range of accessories
  • Calibration options
  • Document downloads
  • Instrument video
  • Instrument FAQs

Instrument product options

1. Select a model (3 available)

Continue to select accessories

2. Select accessories

3. Select a calibration



  • High-quality wide-angle lens 32 ° x 23 ° with F1-optic (provides a wide field of view to see more)
  • Minimum focus distance 10 cm
  • Detector 160 x 120 pixels, interpolating to 320 x 240 pixels with the SuperResolution option
  • Display, providing a high resolution image
  • NETD up to < 0.05 °C at + 30 °C (thermal sensitivity)
  • Refresh frequency 9 Hz (875-1 version) 33 Hz all other models
  • 10 colour palettes
  • Focusing by hand
  • Integrated digital camera (875-1i and 875-2i models only)
  • Removable storage device SD, 2 GB for approximately 2000 pictures
  • Adjustable emissivity
  • Temperature range - 20 to + 280 °C (875-1 model)
  • •Temperature range - 20 to + 350 °C (875-1i and -2i models)
  • Weight approximately 900 g
  • 4 hours battery operating time
  • Comprehensive, easy to use Testo IR PRO software to produce reports
  • Two year warranty


See data sheet for full technical details.



Testo 875 data sheet

  • Technical Document
  • PDF file
  • 4 MB

Testo Building Thermography Data Sheet

  • Technical Document
  • PDF file
  • 2 MB

Testo Industry Thermography Data Sheet

  • Technical Document
  • PDF file
  • 2 MB

Testo SuperResolution fact sheet

  • Technical Document
  • PDF file
  • 197 KB

Demonstration videos

Testo SuperResolution technology overview
Testo thermal imaging camera overview
Testo thermal imaging camera overview



How does SuperResolution work ?


SuperResolution is a patent-pending innovation from Testo that uses the natural movement of your hand, and records several images, slightly offset to each other, very quickly one after the other. These are then calculated into one image using an algorithm. The result: four times more measurement values for you and a considerably better resolution of the thermal image.

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