The 4 most important advantages of the testo 875 thermal imager:

• Good image quality
  With the temperature resolution of < 80 mK, even minimal temperature differences are shown.
   
• Detection of mould risk spots
  Via the manual input of ambient temperature, air humidity and dewpoint in the room, the testo 875 visualizes mould risk spots in the thermal image at a glance.
   
• Integrated digital camera
  The testo 875 with integrated digital camera links real and infrared images for fast, reliable and simple documentation of the measurement.
   
• Automatic Hot/Cold Spot Recognition
  Critical temperature conditions are shown with the Automatic Hot/Cold Spot Recognition. Uninterrupted error localization on site is therefore ensured. The Auto Hot/Cold Spot Recognition also helps you with analysis and documentation when evaluating the details later on a PC.

The 4 most important advantages of the testo 875 thermal imager:

• Good image quality
  With the temperature resolution of < 80 mK, even minimal temperature differences are shown.
   
• Automatic Hot/Cold Spot Recognition
  Critical temperature conditions are shown with the Automatic Hot/Cold Spot Recognition. Uninterrupted error localization on site is therefore ensured. The Auto Hot/Cold Spot Recognition also helps you with analysis and documentation when evaluating the details later on a PC.
   
• Lens protection glass
  The lens protection glass, made of germanium, is permeable to infrared radiation and is simple to attach to the lens. It thereby protects the valuable
  optics from soiling and scratches.
   
• Integrated digital camera
  The testo 875 with integrated digital camera links real and infrared images for fast, reliable and simple documentation of the measurement.

The 5 most important advantages of the testo 881 thermal imager:

• Excellent image quality
  With a thermal resolution of < 50 mK, the testo 881 delivers high-resolution images in which even the smallest temperature differences are emphasized and visualized.
   
• Detection of mould risk spots
  Via the manual input of ambient temperature, air humidity and dewpoint in the room, the testo 881 visualizes mould risk spots in the thermal image
  at a glance.
   
• Built-in digital camera with power LEDs
  In addition to the infrared recording, the testo 881 creates a parallel real image of the location with the integrated digital camera. The integrated power LEDs guarantee you optimum illumination of dark areas when recording real images.
   
• Isotherm function
  With the optical colour alarm in the thermal image of the testo 881, areas of critical temperature on the measurement object are immediately marked.
   
• Voice recording
  The practical headset and the integrated voice recording function facilitate the documentation of the measurement results. Comments can be made on every recording on site. This valuable additional information is stored together with the thermal image.

The 7 most important advantages of the testo 881 thermal imager:

• Highest image quality
  With a thermal resolution of < 50 mK, the testo 881 delivers high-resolution images in which even the smallest temperature differences are emphasized and visualized.
   
• Voice recording
  The practical headset and the integrated voice recording function facilitate the documentation of the measurement results. Comments can be made on every recording on site. This valuable additional information is stored together with the thermal image.
   
• Built-in digital camera with power LEDs
  In addition to the infrared recording, the testo 881 creates a parallel real image of the location with the integrated digital camera. The integrated power LEDs guarantee you optimum illumination of dark areas when recording real images.
   
• Isotherm function
  With the optical colour alarm in the thermal image of the testo 881, areas of critical temperature on the measurement object are immediately marked.
   
• Min/Max on Area
  The minimum and maximum values of an image section can be provided at a glance live directly on site.
   
• Motor focus for one-hand operation
  The motor focus enables you to focus the image using a focus rocker switch. This enables operation of the thermal imager with just one hand.
   
• High temperature option
  With the high-temperature option, the measuring range of the testo 881 can be flexibly extended. If required, simply fit a high-temperature filter
  onto the camera lens. Temperatures up to 550 °C can thereby be measured.