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Testo 557 - 4-Valve Digital Manifold Kit

  • $492.15
  • Save $86

0563 1557 - Standard Kit
0563 2557 - Standard Kit with Hoses



  •  2 x pipe clamp temperature probes, precise external Pirani gauge for vacuum measurement and transport case, with additonal option set of 4 hoses

  • Automatic calculation of superheating and subcooling in real time for 60+ refrigerants: no hassle of manual calculations

  • Temperature-compensated leakage test and automatic ambient pressure measurement

  • Live data feed integration now available with the MeasureQuick App.

The complete kit for work on air conditioning and refrigeration systems, as well as on heat pumps: the testo 557 digital manifold, including a set of 4 hoses! This kit enables you to get down to work straight away! The testo 557 digital manifold fulfils numerous functions in just one instrument: including superheating/subcooling calculation, vacuum measurement and temperature-compensated leakage test. You can also use the powerful testo Refrigeration App to monitor the manifold via your smartphone/tablet and to store the measurement results or send them by e-mail as a complete report.

The testo 557 digital manifold has a 4-way valve block, a large backlit display, and a sight glass. Two NTC thermistor clamp probes provide superior accuracy for simultaneous, real-time superheat and subcooling readings. The wireless Bluetooth / app allows you to view measurement data on your smartphone or tablet, enabling you to quickly and conveniently complete and document your job. Then, be able to finalize documentation and send reports and invoice via email, right from the job site. In addition to the 60 refrigerant profiles stored in the instrument, the app can be used to download new refrigerants from the Internet, directly to the digital manifold.

State-of-the-art technology, to make your work easier: the digital manifold in detail

The testo 557 4-way manifold was developed to relieve your workload, to make your work more efficient, and to deliver more accurate measurement results – as well as to offer your customers services that are even more reliable. See all the advantages at a glance:
  • Quick, precise measurement of high and low pressure: two temperature-compensated pressure sensors make this possible and automatically calculate the theoretical evaporating and condensing temperature
  • Simultaneous calculation of superheating and subcooling: do away with manual calculations, which are time-consuming and during which errors often creep in
  • Precise external Pirani gauge for vacuum measurement: you get a high-precision Pirani gauge with the digital manifold, enabling you to carry out accurate vacuum measurement and making it easier to evacuate refrigeration systems and heat pumps
  • Two clamp temperature probes included in the delivery: clamp them to the cables to reliably measure the surface temperature
  • No need to switch over refrigerant hoses: thanks to automatic heat pump mode
  • Can be used for 60 current refrigerants: 60 refrigerants are stored in the manifold, which you can update if necessary via the smartphone/tablet app and adapt to suit your requirements
Other key functions of the 4-way manifold are the temperature-compensated leakage test and the automatic ambient pressure compensation.


  • Two x Testo 4.9ft Clamp Probe (0613 5505 x 2)

  • One Hard Carry Case (0516 5505)

  • Testo External Vacuum Probe (0638 1557)
  • Certificate of Conformity

  • Optional: 4 x 60" Hoses: 3 x 7/16" UNF (straight & 45° angel), 1 x (yellow) 5/8" UNF, (straight & 45° angle)


Probes and Accessories:

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