Hidden malfunctions can often only be found through long-term measurements, e.g. in the case of irregularities in pressure, temperature or the electrical system. Thanks to the data logging function on the testo 558s, anomalies become evident.
With readings of up to 30 minutes recorded as trend curves. Optionally extendable up to 72 hours.
The testo Smart App guides you quickly and easily through measurements on refrigeration, air conditioning and heating systems.
Newly added:
PRO measuring programs for increasing the efficiency of your applications
Multifunctional
Compatible with all Bluetooth-enabled Testo measuring instruments
Efficient
Direct report dispatch by e-mail
Fast
All measurement values at a glance
Easy
Intuitive measurement menus
Smart
Free download, free use
NEW
PRO measuring programs
At Testo, you’ll find the right measurement technology for a cost and energy efficient operation of heat pumps. You also make sure the environment isn’t burdened by any leaked refrigerant.
Pressure and temperature testing
Controlled refrigerant service
Easy tightness testing and evacuation
Download the exclusive practical guide for free now.
Understanding refrigeration systems
Evaluating refrigerants
Thermodynamics
Main components of the compression refrigeration circuit
Subcooling / Superheating
And much more ...
What else I would like to say to other installers, the device really saves a lot of time, you don't have to take as much stuff with you, you don't have to do as much yourself, because the testo 557s does everything for you.
Tom Siben
·Service technician at Lennox
In the past, we had to work with analogue measuring devices and needed a notepad and we needed external temperature sensors. Testo has now incorporated all of this into a single device. This makes it much easier and much quicker for us to satisfy the customer with the performance of their device.
Peter van Vliet
·Croonwolter&dros
My first impression is very positive, a very nice, new measuring set, the purchase of which you certainly won't regret as a cooling technician. I don't think any other brand can compete.
Marco Slump
·Owner of Slump Heating and Refrigeration, Appingedam (NL)