Infrared radiation cannot be seen by the human eye.
However, all objects with a temperature above absolute
zero, (approximately 273 degrees Celsius), emit infrared
thermal radiation. Thermal imagers can convert infrared
radiation into electrical signals and thus render it visible
with a thermal image.
The Testo 875 and Testo 881 thermal imagers discover
anomalies and weak spots in buildings quickly and
non-intrusively. Where other methods may mean
dismantling cable or pipeline systems, with a Testo
thermal imager, a single glance is enough.
With the Testo 875 and Testo 881, you are hot on
the trail of energy losses in building thermography,
helping your customers to reduce expensive
heating costs.
Even the smallest temperature differences can be
identified with the thermal sensitivity of the testo
thermal imagers. The cameras are hightly flexible with
optional equipment, including a range of lenses to
ensure the correct size image section is always in the
image display.
An integrated digital camera considerably enhances
documentation. The presentation of surface humidity
for fast localisation of mould risk spots is unique in
building thermography.
Testo thermal imagers provide reassurance in
building thermography and identify anomalies!
Testo 875
Professional Building Thermography
 Good image quality - With the temperature resolution of < 110 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 visualises mould risk spots in the thermal image at a glance.
Integrated digital camera - The testo 875-2 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 localisation 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.
Professional Industrial Thermography
Good image quality - With the temperature resolution of < 110 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 localisation 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 875-2 with integrated digital camera links real and infrared images for fast, reliable and simple documentation of the measurement.
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Testo 881
Professional Building Thermography
Excellent image quality - With a thermal resolution of < 80 mK, the testo 881 delivers high-resolution images in which even the smallest temperature differences are emphasised and visualised.
Detection of mould risk spots - Via the manual input of ambient temperature, air humidity and dewpoint in the room, the testo 881 visualises mould risk spots in the thermal image at a glance.
Built-in digital camera with power LEDs (only models 881-1 and 881-3) - 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.
Professional Industrial Thermography
Highest image quality - With a thermal resolution of < 80 mK, the testo 881 delivers high-resolution images in which even the smallest temperature differences are emphasised and visualised.
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 (models 881-1 and 881-3 only) - 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 (model dependant) - 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 (model 881-3 only) - 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.
Data Sheet
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