From the measurement itself through to the documentation – thanks to the app, you can have your everyday servicing and maintenance work on your smartphone or tablet. The testo 550i digital manifold is equipped with Bluetooth, 2-way valve block and a sturdy hook, and can be fully controlled via app and smartphone or tablet – for flexible, fast measurements and digital documentation.
  
testo 550i – App-controlled digital manifold with Bluetooth and 2-way valve block
For carrying out exceptionally fast, easy measurements on refrigeration and air conditioning systems and heat pumps
testo Smart App: Control your servicing and maintenance tasks completely via app and smartphone or tablet, enjoy clearly presented results and digital documentation, set your own favourites, and always have the latest refrigerants
Maximum reliability and convenient handling in environments that are difficult to access thanks to an exceptionally compact, extremely robust housing with IP54 protection class
Maximum flexibility for working wirelessly: Bluetooth probes for temperature, pressure and humidity automatically connect to the measuring instrument via the testo Smart App
Continuously high performance in all conditions: You can depend on this manifold from Testo – it combines proven Testo quality with excellent robustness

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 temperature, humidity and vacuum

Testo 550i digital 2-way manifold including batteries (3 x AAA), calibration protocol and instruction manual