The advent of digital technology means huge quality improvements when it comes to the adjustment of refrigeration systems or heat pumps.
Digital manifolds provide high-precision temperature and pressure measurements, determine subcooling and superheating, but also enable reliable evacuation of the system through accurate vacuum measurement.
And the convenient testo refrigeration App makes commissioning, maintenance or repair even quicker!
One measuring instrument – all parameters
Commissioning, maintenance and/or repair? No matter where the focus of your work on refrigeration systems and heat pumps is, Testo has the appropriate digital manifold for you.
Are service and maintenance of refrigeration systems your thing? This digital manifold will mean you can work efficiently, determine superheating and subcooling in real time and avoid manual calculations which are prone to errors.
It is not for nothing that these are our best-selling manifolds: They offer everything for all-round service and can be combined with the convenient testo refrigeration App.
Our 4-way manifold for professionals enables accurate storage and documentation of pressure measurements, temperature measurements and other important parameters of a refrigeration system in the instrument.
Here you can see which digital manifold is the right one for your requirements:
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Analog | testo 549 | testo 550 | testo 557 | testo 570 |
| Integrated temp. measurement | – | x | x | x | x |
| Pressure measurement accuracy | > 1% fs | 0,5 % fs | 0,5 % fs | 0,5 % fs | 0,5 % fs |
| Identical pressure measuring range (HP/LP) | – | ≤ 60 bar | ≤ 60 bar | ≤ 60 bar | ≤ 50 bar |
| 4-way valve block | product- dependent |
– | – | x | x |
| Internal memory / documentation | – | – | – | – | x |
| "EasyKool" software | – | – | – | – | x |
| No. of refrigerants | product- dependent |
60 | 60 | 60 | 40 |
| Refrigerant update | – | – | by App (smartphone) |
by App (smartphone) |
by software |
| Auto. absolute pressure measurement | – | – | – | x | x |
| Heat pump mode | – | x | x | x | x |
| Temperature-compensated leakage test | – | x | x | x | x |
| Vacuum measurement | – | indication | indication | accurate & robust | accurate & robust |
