Testo launches all-new range of compact HVAC measuring instruments

Introducing the new compact handheld measuring instruments from Testo. 

The new compact class range are perfect for installing and maintaining air conditioning and ventilation systems, servicing heating systems, ensuring indoor air quality and comfort and measuring pressure across industrial applications. Testo’s all-new HVAC measuring instruments demonstrate the proven precision, quality and reliability already associated with the Testo brand.

Measurement values are determined and displayed quickly via the user-friendly Testo Smart App. Not only does the App ensure all measurement menus are available, it also allows a practical second screen function, measured value storage, analysis and documentation in the smart assistant at any time.


  • Compact design
  • Robust
  • Intuitive operation
  • Print reports on site
  • Testo Smart App


  • Measurement results immediately
  • Configuration with the testo Smart App
  • Automatic volume flow calculation
  • Two displays show more than one


  • Digital probes proven in practice
  • Helpful measurement menus
  • Complex measurements, compactly simplified
  • Documentation with the testo Smart App

Air conditioning and ventilation systems

Smooth and energy-efficient operation of air conditioning and ventilation systems is only ensured by regular measurements of relevant parameters. With the new compact measuring instruments testo 417, testo 416 and testo 425, flow and volume flow measurement in ventilation ducts, at air inlets and outlets and when adjusting balanced residential ventilation is easier than ever.

More comfort indoors

We spend almost 90% of our time indoors every day. Thanks to the new compact measuring instruments testo 535, testo 545 and testo 625, CO2, illuminance, temperature, and humidity are controlled quickly, easily and precisely, ensuring a healthy indoor climate that promotes performance.

For more information, visit www.testo.com or contact your local dealer.

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