Start your wireless measurements on refrigeration and air conditioning systems and heat pumps straight away. Thanks to the Bluetooth vacuum probe supplied, you can even measure vacuum without any cables or hoses. You will get the testo 557s smart digital manifold with Bluetooth and 4-way valve block, one testo 552i wireless vacuum probe (Bluetooth), two testo 115i wireless clamp thermometers (Bluetooth, NTC) and a robust transport case. For other wireless measurements, other optionally available testo Smart Probes are also ideal.

Refrigeration systems, air conditioning systems, heat pumps, ductless, single zone, multi zone, mini split systems

Determination of high and low pressure, automatic determination of condensation and evaporation temperature and calculation of superheating/subcooling. All results can be read simultaneously on one screen

Tightness test: Recording and analysis of the pressure curve

Automatic calculation of the target superheat (in conjunction with the appropriate measuring instrument, e.g. Testo Smart Probe)

Measure vacuum: Graphic progression display of the measurement with indication of the start and differential value

Evacuation: Graphic progression display of the measurement with indication of the start and differential value (in conjunction with the appropriate Testo Smart Probe, e.g. testo 552i vacuum probe)

testo 557s - Smart digital manifold with Bluetooth and 4-way valve block

Order-Nr. 0564 5570

All results at a glance thanks to the large graphic display

Exceptionally compact and reliable thanks to the easy-to-handle, rugged housing with IP 54 protection class

testo 115i - Pipe-clamp thermometer operated via smartphone

Order-Nr. 0560 2115 03

Convenient temperature measurement on refrigeration, air conditioning and heating systems – thanks to wireless connection to your smartphone or tablet

Fast identification of temperature changes by graphic progression display

testo 552i - App-controlled wireless vacuum probe

Order-Nr. 0564 2552 01

Identify vacuum quickly and easily by means of the graphical display in the App or on the digital manifold screen

Connects automatically via Bluetooth® to the testo Smart App and digital manifolds

testo Smart App

Order-Nr. 0501 5001

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

testo 557s digital 4-way manifold including batteries (4 x AA) and calibration protocol

1 x testo 552i wireless Bluetooth vacuum probe

2 x testo 115i wireless Bluetooth clamp thermometers

Transport case

testo Smart App (free download)

Instruction manuals