Downloads for Testo thermal imagers
(PC software & instrument firmware)
Find the downloads of the PC software and instrument firmware here, for the thermal imagers:
- testo 880
- testo 875
- testo 881
PC softwarePlease start the "setup.exe", in order to carry out the installation. The USB driver will also be installed during the installation.
If you have already installed the PC software on your computer, your existing version will be updated with the newest version.
Download PC softwareFor the thermal imagers testo 880, testo 875 and testo 881
Now with new PC software function: TwinPix image overlay

> Download IRSoft Version 2.5
Note: TwinPix works with all thermal imagers from Testo (testo 880, testo 875 and testo 881)
Instrument firmwareIn order to be able to use the PC software optimally, the instrument should also beupdated with the latest version of the instrument firmware. You will find the program “FlashTool”, which you need to update the instrument firmware in the sub-directory
C:\testo 880\updates (bzw. C:\testo 875\updates or C:\testo 881\updates).
Please observe the instruction for the
> Firmware update.
Information: Infrared images, which were created using a thermal imager testo 880 and the firmware version 1.08, can be read out using software version 1.4 and upwards.

Update instrument firmware
Thermal imager testo 880 (Version 1.22)
> Download instrument firmware testo 880
Thermal imager testo 875 (Version 1.14)
> Download instrument firmware testo 875
Thermal imager testo 881 (Version 1.14)
> Download instrument firmware testo 881