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testo 550 digital manifold kit - with Bluetooth® and set of 3 filling tubes

0563 2550
  • Extensive accessories included: set of 3 filling tubes, 2 x clamp temperature probes and transport case
  • Automatic superheating/subcooling calculation for 60 refrigerants: no more need for error-prone manual calculations
  • With practical testo Smart App: Remote display and operation, graphic curve display, measurement value storage and documentation, automatic refrigerant updates
  • Temperature-compensated leakage test
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    Do you work on air conditioning and refrigeration systems as well as heat pumps on a daily basis? If so, the testo 550 digital manifold kit is your perfect companion. See all the advantages at a glance:
    • Quick, accurate measurement of high and low pressure with two temperature-compensated pressure sensors; automatic determination of the evaporation and condensation temperature
    • Two temperature inputs for attachable temperature probes for the simultaneous calculation of superheating and subcooling: this means you can do without any error-prone manual calculations and get a reliable result straight away
    • Including 3 filling tubes (blue, red, yellow), each 1.5 m long, 7/16‘‘ UNF (straight and 45° angle) and 55/275 bar, suitable for all common refrigerants
    • Two clamp temperature probes included in the scope of delivery: when clamped directly onto the pipes, these enable reliable measurement of the surface temperature
    • No need to switch over refrigerant hoses: thanks to automatic heat pump mode
    • 60 refrigerants stored in the instrument: just one instrument covers all the most important refrigerants and, depending on the refrigerant, there is no need for different manifolds (refrigerant update possible via App)
    Moreover, the 2-way manifold offers other functions and features, such as display of the temperature difference or the temperature-compensated leakage test.

    testo Smart App: Use the manifold with your smartphone/tablet

     Install the free testo Smart App for the testo 550 digital manifold on your smartphone/tablet and take advantage of a host of practical features:
    • Remote monitoring of the measurement: you can track the measurement from your smartphone/tablet, so there's no need for you to stay right next to the manifold; coverage of up to 20 m with no obstructions (at least)
    • Measurement data display on your smartphone/tablet: you can follow the measurement in numerical form and as a graphical progression display on your smartphone/tablet – really practical if you are configuring the system at the same time
    • Useful documentation functions: use the App to store measurement results (in pdf or csv format) and also send them directly via e-mail. If you have taken a photo of the measuring location using your smartphone/tablet, you can also insert this into the documentation
    • Refrigerant update: use the App to carry out refrigerant updates in order to ensure that your digital manifold is kept up to date at all times regarding refrigerants, or to adapt the list of refrigerants to suit your requirements
    The App is available for both Android and iOS. Once the App is installed, a connection between the manifold and your smartphone/tablet can be established via Bluetooth.

    Digital manifold: sturdy, simple and practical

    Not only is the robust 2-way valve block, which is made of metal with 3 connections and 3 hose holders, created for harsh working environments, it is also easy to handle. The sturdy housing reliably protects the testo 550 digital manifold against impacts (protection class IP42). The suspension hook secures the instrument during the measurement. The large, illuminated display enables quick, easy readout, even when visibility is poor.

    • testo 550 digital 2-way manifold, including set of 3 filling tubes, batteries (4 x AA) and calibration protocol
    • 2 x clamp temperature probes (0613 5506)
    • Transport case (0516 0012)
    • App (free download)


    Measuring range
    −50 to +150 °C
    ±0,5 °C
    0,1 °C
    Probe connection
    2 x Plug-in (NTC)

    Pressure measurement

    Measuring range
    −1 to 60 bar
    ±0,5 % of fsv
    0,01 bar
    Probe connection
    3 x 7/16" – UNF
    Overload rel. (high pressure)
    65 bar

    Vacuum measurement

    Measuring range
    −1 to 0 bar