testo 550i
Fully smart, fully wireless:
The smallest manifold
of all time.

Marco, refrigeration mechatronics engineer
Marco, refrigeration mechatronics engineer

"I want everything to happen in one App: measurement, calculation and reporting."

Marco,
refrigeration mechatronics engineer

testo 550i

Marco does everything by smartphone. In life – and now in his job too.

We developed the testo 550i, the world’s only completely App-controlled manifold, just for people like him.

It allows him to measure, document and send reports wirelessly.

  • All activities, from measurement through to documentation,
    using the testo Smart App on your smartphone
  • The smallest digital manifold on the market
  • Maximum reliability
    thanks to the extremely robust housing with IP54 protection class
  • Optionally expandable with testo Smart Probes
    for wireless measurement of temperature, humidity and vacuum

Fully smart, fully wireless.

The testo Smart App with its intuitive user-guidance makes measurements

  • faster,
  • easier,
  • and more convenient than ever before.

A smart team.

Wireless measurement, uncomplicated documentation

  • with Bluetooth probes,
  • testo Smart App and
  • free testo DataControl PC software.

The advantages are obvious.

  • The rugged housing
  • does its job reliably
  • even under extreme conditions.

Find your perfect kit.

testo 550s Basic Kit
 

  • Digital 2-way manifold
  • Immediately ready to go with the kit including two cable clamp temperature probes
  • Cleverly stowed in the practical case
  • Including calibration certificate and batteries

testo 550s Smart kit
 

  • Digital 2-way manifold
  • Immediately ready to go with the kit including two wireless clamp temperature probes
  • Cleverly stowed in the practical case
  • Including calibration certificate and batteries

testo 550s Smart kit
with hoses

  • Digital 2-way manifold
  • Immediately ready to go with the kit including two wireless clamp temperature probes and three filling hoses
  • Cleverly stowed in the practical case
  • Including calibration certificate and batteries

testo 557s Smart Vacuum Kit
 

  • Digital 4-way manifold
  • Immediately ready to go with the kit including two wireless clamp temperature probes and wireless vacuum probe
  • Cleverly stowed in the practical case
  • Including calibration certificate and batteries/li>

testo 557s Smart Vacuum Kit
with hoses

  • Digital 4-way manifold
  • Immediately ready to go with the kit including two wireless clamp temperature probes, wireless vacuum probe and four filling hoses
  • Cleverly stowed in the practical case
  • Including calibration certificate and batteries

testo 550i Smart Kit
 

  • Smart, fully digital manifold
  • Immediately ready to go with the kit including two wireless temperature probes
  • Cleverly stowed in the practical case
  • Including calibration certificate and batteries

testo 550i Smart Kit with micron gauge

testo 550i Smart Kit with micron gauge and thermohygrometers

One for all.
The testo Smart App.

  • All in one:
    One App for all Bluetooth®-enabled Testo measuring instruments for air conditioning/refrigeration systems and heat pumps
  • Quick and easy:
    Measurement menus for numerous applications provide optimum support in configuring and carrying out measurements, e.g. superheating/subcooling
  • Clear graphical presentation of readings,
    e.g. as a table, for quick interpretation of results
  • Create digital measurement reports including photos
    as PDF/CSV files on site and send via e-mail