Testo connectivity
Testo connectivity

The interface
to the future.

Testo connectivity.

The fastest data connection between the measuring instrument, common sector Apps and software applications.

Data transfer
the easy way.

The future is networked. And data integration and the possibility of combining different systems with each other via open interfaces is already becoming more important today. Also in measurement technology.

That’s why Testo has created an interface with which measurement data from Testo tools can now be easily transferred to common sector Apps and software applications. Some manufacturers already support the Testo interface, and for the rest we’re making it easy to integrate it.

Measurement data transfer with one click

One interface.
All possibilities.

With Testo connectivity, you can not only connect our measuring instruments with our own Apps and software solutions, but just as easily with common sector Apps and software applications. The only requirement: That the manufacturer either already supports the Testo interface – or will integrate it into their system.

This allows technicians and staff to access measurement results on all end devices (smartphone, tablet, PC) in just a few seconds, to process them and use them for creating maintenance reports and proof.

Directly from the measuring instrument (e.g. for testo 300, testo 330, testo 320)

  • to sector and customer specific Apps
  • to common sector software applications
  • to Testo’s own easyHeat software
  • to Testo’s own testo Flue Gas App (not applicable to testo 300)


Directly from the Testo Smart App (e.g. for testo 550s/557s, Testo Smart Probes)

  • to sector and customer specific Apps
  • to common sector software applications
  • to Testo’s own DataControl software


Directly from App-based measuring instruments (for testo 400)

  • to sector and customer specific Apps
  • to common sector software applications
  • to Testo’s own DataControl software


Fast & wireless

  • via Bluetooth
  • via WLAN


Connectivity to any operating system

  • iOS
  • Android
  • Windows
Data transfer from measuring instrument to smartphone and PC

Your advantages at a glance:

  • Time-saving measurement result transfer at a click
  • No more transfer errors
  • Provide data to different staff or departments quickly and without complications
  • Direct creation of maintenance reports and proof
  • Secure data transfer – online and offline
  • Simplified work processes for more efficiency

Would you like to learn more?

We are here for you. Get in touch with us or leave your contact data here, we’ll get back to you right away.

For IT specialists: All information on integration.

For the purposes of data exchange, we use JavaScript Object Notation (JSON). Find more information, instructions, codes and examples on the free-access developer platform Github.

Ready when you are:
These measuring instruments are equipped for cross-system data transfer.

Quick, secure and efficient Within just a few seconds and without any transfer errors, measurement results such as flue gas values, temperatures, pressures and much more are transferred via Bluetooth or WLAN to the common sector Apps or software applications. And the fitters and technicians have all values immediately to hand. En route on their smartphone or tablet, or at a PC in the office.


A good reference for the future:
The TAIFUN contractors’ App.

For over 30 years, the exemplary German company TAIFUN has supported contractors in their daily work with its software – from handling orders to warehouse management to invoicing. Since June 2020, the TAIFUN App now has an interface to our measuring instruments. This allows contractors to import measurement values from their end devices directly to the sector software in just a few seconds, and to access and process them at a PC or via App, en route or in the office. It goes without saying that the use of the new interface is free of charge for all customers.

Become a Testo reference customer

Become a Testo reference customer

Your project could be here.

Let’s network!

We’re open to all queries.