Choosing the Right Multifunction Measuring Instrument

Have you ever considered buying a multifunction measuring instrument?

Multifunction measuring instruments have many advantages to make your job easier:

  • You have one universal tool to use, ready for all air velocity & IAQ measurement tasks
  • Select your own combination of probes – everything you need, nothing you don't
  • You invest only once – and benefit from versatile technology designed for long-term use

Sound interesting?
Then our multifunction measuring instruments are just right for you.

Find the right tool for you!

Using the online configurator, you can easily select your measurement needs, preferences, and priorities, and we'll automatically recommend for you your own personal combination of a multifunction instrument, probes, and accessories.

Compare Multifunction Instruments:

testo 435 Multifunction Meter

testo 435 multifunctional measuring instrument
  • Perfect for taking quick measurements
  • Large selection of probes for all VAC applications
  • Probe-dependent menus and selectable user profiles for duct and IAQ measurement
  • Internal memory for up to 10,000 values

testo 440 Multifunction Instrument

testo 440 multifunctional measuring instrument
  • Perfect for fast and intuitive measurements
  • Clearly structured measurement menus for all VAC applications
  • Available wireless Bluetooth probes increase convenience and decrease cable clutter
  • Only individual probes need to be calibrated
  • Internal memory for 7,500 measurement values and USB interface for protocol export


testo 480 Multifunction Instrument

testo 480 multifunctional measuring instrument
  • Perfect for compliance measurements
  • Guided programs for VAC grid measurements and comfort (PMV/PPD)
  • Highly accurate, individually calibratable probes
  • Professional report creation
  • Internal memory up to 60 million measurement values