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Description
The Testo 557s Smart Vacuum Kit is a state-of-the-art industrial diagnostic solution designed for completely wireless commissioning, routine service, and comprehensive testing of refrigeration installations, cooling units, and heat pumps. This targeted package features the Testo 557s digital manifold equipped with a high-resolution graphic display and a sturdy 4-way valve block. By combining it with the specialized Testo 552i wireless vacuum probe and two Testo 115i wireless clamp thermometers, technical teams can verify systems without cumbersome physical lines. The layout supports advanced data logging via Bluetooth through the Testo Smart App. It is natively compatible with Class A3 and A2L flammable refrigerants and features an industrial-grade, heavy-duty IP54 protective field housing.
B2B Applications
- Hose-Free High-Vacuum Evacuation: Running precise system evacuation and dehydration protocols using the Bluetooth vacuum probe connected directly to the maintenance port, avoiding hose-related drop friction.
- Automated Thermodynamic Profiling: Continuous calculation of subcooling and superheating metrics across high-pressure and low-pressure sides without cable routing limits.
- Industrial Stability and Tightness Testing: Execution of automated, app-guided pressure retention tests over extended diagnostic periods to confirm total loop physical integrity.
Technical Parameters
| Pressure Measuring Range | -1 to 60 bar |
| Pressure Measurement Accuracy | ±0.5 % fs |
| Temperature Measuring Range | -50 to +150 °C |
| Temperature Measurement Accuracy | ±0.5 °C |
| Housing Protection Index | IP54 |
| Wireless Communication | Bluetooth (Transmission Range up to 150 m) |
Package Contents
- Testo 557s digital manifold with 4-way valve block
- 1 x Testo 552i wireless vacuum probe (Bluetooth)
- 2 x Testo 115i wireless clamp thermometers (Bluetooth, NTC)
- Rugged industrial transport case
- Factory calibration protocol