The entire world of thermography
in your pocket.
Compact, smart, and ready to use in seconds.
Sharp thermal images, instantly
The new testo 862 brings a new level of clarity to your inspections. Compact enough to fit in any pocket, it captures ultra-sharp thermal images in seconds, while smart features ensure you never miss a spot.
High image quality
High resolution (160x120 | 256x192) and thermal sensitivity (< 50 mK) ensure sharp thermal images. Fusion mode adds visual context for even greater clarity.
Intuitive operation
A seamless, smartphone-like interface makes every job feel effortless.
Fast diagnostics
Smart diagnostic features such as automatic Delta T calculation, DeltaHeat Mode, hot/cold spot detection, alarms, or intelligent mould detection speed up inspections.
Professional performance in every application
Heating
Instantly visualise heat distribution across the radiator surface and determine spread in seconds, with the DeltaHeat Mode providing instant feedback and recommendation. Cold spots, blocked sections, and uneven heating patterns are immediately visible, making it easy to diagnose sludge buildup, airlock issues, or balancing problems on the spot. What used to take time and multiple measurements is now a single, clear image.
Smart features for fast diagnostics
Speed up inspections and simplify your workflow with smart features that ensure you never miss a spot.
Automatic Delta T calculation
Automatic Delta T calculation directly in the thermal image
Seamless connectivity for more context
Wirelessly connect the testo 862 to the testo 605i to unlock intelligent mould detection, or the testo 770-3 the clamp meter to add electrical data directly to your thermal images.
Coming soon
testo Smart App
Integration is planned for 2027.
Electrical data integrated in thermal images for more context, better diagnosis and comprehensive documentation.
Easy-to-read traffic light system immediately reveals mould risk areas.
The thermal imager that feels like a smartphone
Your job is complex enough. Your tools shouldn´t be.
That´s why we created a user experience that feels familiar from the first touch.
Intuitive touch operation
User-friendly menus
Easy-to-browse image gallery
Text annotation for better documentation
Professional Reports
The 862 includes free access to IRSoft analysis and reporting software. Turn your findings into professional reports in no time with IRSoft’s ready-to-use report templates.
Get in touch
Got a question? Our thermography experts are happy to help you find the right solution for your needs.