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Data Sheet PDF | Instruction Manual PDF
Description
The Testo 558s is a high-precision digital manifold equipped with a 4-way valve block and a capacitive touchscreen display. It is designed for seamless data logging and system analysis of refrigeration systems, air conditioning, and heat pumps. The hybrid battery system and robust IP54 housing ensure uninterrupted operation in industrial environments. Compatible with A3 and A2L flammable refrigerants.
B2B Applications
- Commissioning of HVAC systems: Evacuation, leak testing, and automated calculation of superheating and subcooling.
- Industrial Refrigeration Maintenance: Long-term data logging up to 72 hours to detect intermittent pressure drops and system anomalies.
- Refrigerant Management: Rapid switching and selection between 96+ stored profiles, including flammable compounds.
Technical Parameters
| Pressure Measuring Range | -1 to 60 bar |
| Pressure Accuracy | ±0.25 % fs |
| Temperature Measuring Range | -50 to +150 °C |
| Temperature Accuracy | ±0.5 °C |
| Protection Class | IP54 |
| Interface | Bluetooth 5.0 (Range 150 m) |
Package Contents
- Testo 558s digital manifold
- Built-in rechargeable Li-ion battery 18650
- 3 x AA alkaline batteries
- Calibration certificate and documentation