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Includes an external vacuum probe for faster and more reliable evacuations, 4-way valve block, as well as a large backlit display and sight glass so you can clearly read measurement data and vacuum readings.
Includes an external vacuum probe for faster and more reliable evacuations, 4-way valve block, as well as a large backlit display and sight glass so you can clearly read measurement data and vacuum readings.
Discontinued!
This product has been discontinued and is no longer available.
There is no direct replacement, however we recommend the:
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The 557 Digital Manifold opens up new possibilities for efficient analysis and documentation thanks to the integration of Bluetooth connectivity with the Testo Refrigeration App. You can clearly read measurement data, such as automatic calculations of superheat, sub-cool and vacuum readings, on a Smartphone or Tablet, allowing you to work more quickly and conveniently than ever before. In addition, measurement reports can be created and sent directly from the job site.
The 557 features an external vacuum probe for faster and more reliable evacuations and is suitable for all refrigeration systems or heat pumps. This compact manifold has a 4-way valve block, large backlit display and sight glass.
Features
Refrigerants
With 60 refrigerant profiles standard and the ability to update the refrigerant list directly from the app, you can be confident that your digital manifold will always have what you need.
Included Refrigerants:
R11, R12, R123, R124YF, R1234ZE, R125, R13B1, R134A, R14, R142B, R152A, R161, R22, R227, R23, R290, R32, R401A, R401B, R401C, R402A, R402B, R404A, R406A, R407A, R407B, R407C, R407D, R407F, R408A, R409A, R410A, R411A, R412A, R413A, R414B, R416A, R417A, R420A, R421A, R421B, R422A, R422B, R422C, R422D, R424A, R426A, R427A, R434A, R437A, R438A, R502, R503, R507, R508A, R508B, R600, R600A, R744(CO2), R718 (H2O)
Download the App
| Pressure | |
| Measuring Range | -14.7 to 870 PSI (-11 to 60 bar) |
| Accuracy (at 70°F) | ±0.5% fs |
| Resolution | 0.1 PSI (0.01 bar) |
| Connection | 1/4", 3/8" |
| Overload | 940 PSI (65 bar) |
| Temperature | |
| Measuring Range | -58 to 302°F (-50 to 150°C) |
| Accuracy (at 70°F) | ±0.9°F (0.5°C) |
| Resolution | 0.1°F (0.1°C) |
| Connections | 2 x Plug-in (NTC Probes) |
| Vacuum | |
| Measuring Range | 0 to 20,000 Micron |
| Accuracy (70°F) | ±10% of rdg + 10 microns (100 to 1000 microns) |
| Resolution | 1 micron (from 0 to 1000 micron) |
| Connections | External Vacuum Probe (DIN Connection) |
| General Specifications | |
| Dimensions | 8.7 x 4.0 x 2.75" (220 x 125 x 70 mm) |
| Weight | 2.8 lbs (1270g) |
Click on a category to view a selection of compatible accessories with the Testo 557 Digital Manifold Kit with Hoses, External Vacuum Probe & Bluetooth.
| Pressure | |
| Measuring Range | -14.7 to 870 PSI (-11 to 60 bar) |
| Accuracy (at 70°F) | ±0.5% fs |
| Resolution | 0.1 PSI (0.01 bar) |
| Connection | 1/4", 3/8" |
| Overload | 940 PSI (65 bar) |
| Temperature | |
| Measuring Range | -58 to 302°F (-50 to 150°C) |
| Accuracy (at 70°F) | ±0.9°F (0.5°C) |
| Resolution | 0.1°F (0.1°C) |
| Connections | 2 x Plug-in (NTC Probes) |
| Vacuum | |
| Measuring Range | 0 to 20,000 Micron |
| Accuracy (70°F) | ±10% of rdg + 10 microns (100 to 1000 microns) |
| Resolution | 1 micron (from 0 to 1000 micron) |
| Connections | External Vacuum Probe (DIN Connection) |
| General Specifications | |
| Dimensions | 8.7 x 4.0 x 2.75" (220 x 125 x 70 mm) |
| Weight | 2.8 lbs (1270g) |
Click on a category to view a selection of compatible accessories with the Testo 557 Digital Manifold Kit with Hoses, External Vacuum Probe & Bluetooth.
