The testo 557 digital manifold fulfils numerous functions, which are required for working on refrigeration systems and heat pumps, in just one instrument: for example superheating/subcooling calculation, vacuum measurement, temperature-compensated leakage test. You can also use a practical app to monitor the manifold via your smartphone/tablet and store the measurement results or send them by e-mail. Are you primarily entrusted with the commissioning or maintenance of refrigeration systems or heat pumps? If so, the testo 557 is the ideal digital manifold for you: like the testo 550, this digital manifold replaces multiple tools in the refrigeration industry and can be connected to a practical app. As well as the features of the testo 550 manifold, the testo 557 offers a high-precision external Pirani gauge for vacuum measurement: this enables the quick, safe evacuation of refrigeration systems and heat pumps.






testo 557 – Digital Manifold Set (Bluetooth) no sight glass)
Ref: 196202
The testo 557 digital manifold fulfils numerous functions, which are required for working on refrigeration systems and heat pumps, in just one instrument: for example superheating/subcooling calculation, vacuum measurement, temperature-compensated leakage test. You can also use a practical app to monitor the manifold via your smartphone/tablet and store the measurement results or send them by e-mail.
- Calculation of superheating and subcooling in real time: no manual calculation, which is prone to error
- Connect to smartphone/tablet app: remote monitoring and smart measurement documentation
- Precise external Pirani gauge for vacuum measurement, temperature-compensated leakage test, automatic ambient pressure measurement
- The 60 most common refrigerants are stored in the instrument, subsequent updates possible (via app)
- Quick, precise measurement of high and low pressure: two temperature-compensated pressure sensors make this possible and automatically calculate the t
- Simultaneous calculation of superheating and subcooling: do away with manual calculations, which are time-consuming and during which errors often cree
- Precise external Pirani gauge for vacuum measurement: you get a high-precision Pirani gauge with the digital manifold, enabling you to carry out accur
- Two clamp temperature probes included in the delivery: clamp them to the cables to relia
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Specification for: testo 557 – Digital Manifold Set (Bluetooth) no sight glass)
| Range | Refrigeration |
| Type | Manifolds |