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

Manfred, refrigeration plant fitter
Manfred, refrigeration plant fitter

"A measuring instrument is a tool – and first and foremost, it needs to be tough."

Manfred,
refrigeration plant fitter

testo 550i

Manfred is happy that testo 550i, the smallest manifold in the world, is not only rugged and reliable, but is easily operated with your smartphone.

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

The advantages are obvious.

 Compact, handy and rugged:

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

Fully App-controlled.

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.

Find your perfect kit.

testo 550s Basic Kit

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

testo 550s Smart Digital Manifold Kit

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

testo 550s Smart Digital Manifold Kit
with wireless vacuum probe

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

testo 550s Smart Digital Manifold Kit w/ wireless vacuum probe + 3 hoses

  • Digital 2-way manifold
  • Immediately ready to go with the kit including two wireless clamp temperature probes, wireless vacuum probe, and 3 refrigerant hoses
  • Cleverly stowed in the rugged case
  • Including calibration certificate and batteries

testo 557s Smart Digital Manifold Kit with wireless vaccum probe

  • Digital 4-way manifold
  • Ready to go in the kit including two wireless clamp temperature probes and wireless vacuum probe
  • Cleverly stowed in the rugged case
  • Including calibration certificate and batteries

testo 557s Smart Digital Manifold Kit
w/ wireless vaccum probe + 4 hoses

  • Digital 4-way manifold
  • Ready to go in the kit including two wireless clamp temperature probes, wireless vacuum probe and 4 refrigerant hoses
  • Cleverly stowed in the rugged case
  • Including calibration certificate and batteries

testo 550i Smart Manifold 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 wireless vacuum probe

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

testo 550i Smart Kit with wireless vacuum probe and thermohygrometers

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