- Designed for refrigeration servicing work
- Colour touchscreen with physical controls
- Displays readings as 30-minute trend curves
- Compatible with A3 and A2L refrigerant types
Testo 558s Digital Manifold
The Testo 558s Digital Manifold is a 4-way instrument for refrigeration maintenance and servicing, bringing pressure measurement, temperature inputs and dedicated measurement programmes into one unit. Its colour touchscreen displays readings and graphs, while physical keys allow operation when wearing gloves and the testo Smart App provides another way to control measurements. A3 and A2L compatibility supports work with these flammable refrigerant classes, and wireless connections link the manifold to compatible Testo refrigeration instruments.
For system checks, compatible temperature probes enable automatic superheat and subcooling calculations, and the separate Testo 552i probe supplies vacuum readings during evacuation. You can review measurement changes as trend curves, mark frequently used refrigerants as favourites and export reports through the app to complete documentation on site. A hybrid power system lets you use the built-in rechargeable battery or replaceable AA batteries, with USB-C charging for the rechargeable battery.
Key Benefits
- Touchscreen menus simplify configuration and measurement selection
- Physical keys allow use while wearing gloves
- Refrigerant favourites help you recall frequently used entries
- Measurement graphs help you spot changes during system checks
- Bluetooth connections support compatible Testo Smart Probes and refrigeration instruments
- Measurement reports can be exported and sent from the app while on site
- Over-the-air updates can add refrigerants and connectivity for new products
Common Applications
The Testo 558s is suitable for a range of refrigeration service tasks, including:
- Refrigeration pressure measurements
- Superheat and subcooling calculations with compatible temperature probes
- Tightness testing
- Temperature difference (Delta T) measurements with temperature probes
- Evacuation monitoring using the optional Testo 552i vacuum probe
- Automatic refrigerant charging with the optional Testo 560i scale and testo Smart Valve
Why Choose This Model?
The standalone model suits buyers selecting compatible probes and a clamp meter separately. The Ultimate Refrigeration Kit supplies these alongside the manifold.
Product Comparison
| Feature | Testo 558s Digital Manifold | Testo 558s Ultimate Kit |
|---|---|---|
| Manufacturer part number | 0564 5581 | 300564 5000 04 |
| Wireless temperature probes | Optional Testo 115i probes | 2 x Testo 115i clamp thermometers included |
| Wireless vacuum probe | Optional Testo 552i probe | 1 x Testo 552i vacuum probe included |
| Clamp meter | Optional Testo 770-3 | 1 x Testo 770-3 included |
| Automatic charging equipment | Requires optional Testo 560i scale and testo Smart Valve | Testo 560i refrigerant scale and refrigerant valve included |
General Specifications
| Specification | Details |
|---|---|
| Product type | Digital manifold with 4-way valve block |
| Display | Colour capacitive touchscreen |
| Stored refrigerants | More than 96 |
| Flammable refrigerant compatibility | A3 and A2L |
| Pressure connections | 3 x 7/16″ UNF + 1 x 5/8″ UNF |
| Temperature probe connections | 2 x plug-in (NTC) |
| Wireless connection | Bluetooth® 5.0; 150 m radio range |
| Protection class | IP54 |
| Pressure overload | 65 bar, low-pressure and high-pressure sides |
| Data export formats | CSV, JSON, PDF |
Measurement and Accuracy Specifications
| Measurement Function | Range and Resolution | Accuracy |
|---|---|---|
| Pressure | -1 to 60 bar Resolution: 0.01 bar |
±0.25 % fs |
| Temperature via NTC inputs | -50 to +150 °C Resolution: 0.1 °C |
±0.5 °C |
Mechanical and General Information
| Specification | Details |
|---|---|
| Operating temperature | -20 to +50 °C |
| Storage temperature | -20 to +60 °C |
| Dimensions | 229 x 112.5 x 71 mm |
| Weight | 1.3 kg |
| Battery system | Built-in rechargeable 18650 battery with USB-C charging; replaceable 3 x AA alkaline batteries |
| Battery life | ≤ 70 h with backlighting and Bluetooth® |
| Automatic power-off | After 10 minutes when not connected via Bluetooth® |
Specification Notes
- Pressure and temperature accuracies are specified at 22 °C
- Pipe temperature measurement and automatic superheat or subcooling calculations require compatible temperature probes, supplied separately
- Vacuum measurement requires an external vacuum probe, such as the separately supplied Testo 552i
What’s Included
- Testo 558s digital 4-way manifold
- USB-C cable
- Calibration protocol
- Instruction manual
- testo Smart App, available as a free download
Meta Description
Testo 558s Digital Manifold for refrigeration servicing, with a colour touchscreen, Bluetooth and A3/A2L compatibility.
FAQ
- Are probes included?
- No, the Testo 558s Digital Manifold connects to optional wireless temperature and vacuum probes for refrigeration work.
Official Documents
What’s Included
- Testo 558s digital 4-way manifold
- USB-C cable
- Calibration protocol
- Instruction manual
- testo Smart App, available as a free download
EAN & MPN
| Identifier | Details |
|---|---|
| MPN | 0564 5581 |