testo 558s – digital manometer stand with 4-way valve block
One instrument for all applications: wireless connection to testo SmartProbes, clamp ammeter, vacuum pump and refrigerant scale
- Touchscreen and measurement graphics with intuitive app feel
- Full flexibility: unique touchscreen, buttons and smart app
- Trend curves for readings over 30 minutes
- Possibility of 72 hours of logging and measurement data storage in app
6 495:- exkl. moms
Finns i lager
Finns i lager
Digital pressure gauge rack with 4-way valve block and intuitive touch screen
Intuitive use
The touch screen function and large color display make configuration, control and documentation much easier. Thanks to this, you can work faster and more intuitively with the pressure gauge stand. When working with gloves, the manometer stand can be operated with buttons, in addition to the touch screen.
Ready for all refrigerants
For maximum safety, the pressure gauge rack is also compatible with class A3 and A2L flammable refrigerants. With a wide selection of 96+ refrigerants, all common refrigerants are stored in the pressure gauge rack. Frequently used refrigerants can be marked as favorites for quick recovery.
Accurate measurement results on an easy-to-read display
High accuracy of 0.25 at full scale and new, clear measurement charts make system analysis easy and reliable.
Data logging
Measurement values can be recorded for up to 30 minutes and displayed as trend curves. This allows anomalies to be quickly identified. As an option, the manometer rack can be extended to a logging capacity of 72 hours.
Easy data management
The measured values can be exported directly and sent as a measurement report via the testo Smart app, so that the documentation can be entered on site with just a few clicks.
Ready for any application with full connectivity
Superheating and subcooling, leak testing, Delta T, evacuation or filling – thanks to a wide range of measuring programs and connection to the entire refrigeration portfolio, all applications can be controlled and documented via the pressure gauge rack.
Reliable and robust
The IP54 protection class ensures a high level of robustness and durability.
Always up to date
Thanks to free updates (OTA), the manometer rack can be updated regularly. This allows, for example, new refrigerants to be added and connection to new products to be made possible.
Scope of supply
- testo 558s – digital 4-way manometer stand
- USB-C cable
- testo Smart app (free download)
- Factory protocol
- Instructions for use
| Temperature | |
| Measurement range | -50 ... +150 °C |
| Accuracy | ±0.5 °C |
| Resolution | 0.1 °C |
| Sensor connection | 2 x plug-in (NTC) |
| Pressure measurement | |
| Measurement range | -1 ... 60 bar |
| Accuracy | ±0.25 % fs |
| Resolution | 0.01 bar |
| Sensor connection | 3 x 7/16" – UNF + 1 x 5/8'' – UNF |
| Overload relative (low pressure) | 65 bar |
| Overload relative (high pressure) | 65 bar |
| General technical data | |
| Weight | 1.3 kg |
| Dimensions | 229 x 112.5 x 71 mm |
| Operating temperature | -20 ... +50 °C |
| Protection class | IP54 |
| Auto-off instrument | 10 min |
| Battery life | ≤ 70 h with backlight and Bluetooth® |
| Battery type | Built-in rechargeable battery: LI battery 18650; 3x AA; Replaceable battery: 3 alkaline AA batteries |
| Display type | Capacitive touchscreen |
| Interface | Bluetooth 5.0 ® |
| Radio range | 150 m |
| Storage temperature | -20 ... +60 °C |
Probes
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testo 557s – manometer stand with 4-way valve block
7 765:- exkl. moms Art.nr 0564 5571Smart digital manometer stand with Bluetooth and a 4-way valve block
- Fully wireless measurements and quick overview of all measurement results: thanks to Bluetooth sensor and large graphic display.
- Exceptionally compact and reliable thanks to the easy-to-handle, robust instrument housing with IP 54 protection class.
- Simple, wireless and flexible measurement and documentation
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testo 115i – wireless pipe temperature sensor
965:- exkl. moms Art.nr 0560 2115 02For the installation, servicing and troubleshooting of heating and cooling systems
- Measuring range -40 ... +150 °C
- For pipe diameters of 6-35 mm
- Up to 100 meters Bluetooth range between sensor and smartphone
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Tube temperature sensor for testo 550/557
665:- exkl. moms Art.nr 0613 5505Temperature sensor for measuring on pipes with diameters from 6 mm to 35 mm. -

Pipe sensor with Velcro max 75 mm
1 235:- exkl. moms Art.nr 0613 4611Pipe sensor with Velcro, for pipes with a maximum diameter of 75 mm.
Vacuum probes
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testo 552i – wireless vacuum sensor
2 055:- exkl. moms Art.nr 0564 2552App-controlled wireless vacuum sensor
- Identify vacuum quickly and easily using the graphical display in the testo Smart app or on the digital manometer stand display
- Connects automatically via Bluetooth® to the testo Smart app and to digital manometer stands
- Exceptionally compact and reliable thanks to the easy-to-handle, robust instrument housing with IP 54 protection class.
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Magnetic strap
615:- exkl. moms Art.nr 0564 1001Magnetic strap for your digital manometer stand- Strong magnet and robust strap
- For flexible use of hook or magnet
- Simple click system allowing for quick changes
- Can withstand 7 kg of traction
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Spare parts kit – valves
490:- exkl. moms Art.nr 0554 5570The valves and knobs on your digital pressure gauge stands are subject to wear and tear. Use this spare parts kit to quickly get your equipment working optimally again. The parts can be easily replaced directly at the measurement site. The spare parts kit allows you to replace the two valves on the high and low pressure side or on the two center connections of the digital manometer rack. Order another kit if you need to replace all 4 valves. Included in delivery- 2 valve knobs
- 2 couplings with threads
- 2 valve screws
- 2 spring locks
- 2 black valve wheel covers
- 1 red valve wheel cover
- 1 blue valve wheel cover
- 1 tube of threadlocker
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Practical instrument case
1 420:- exkl. moms Art.nr 0516 2012Practical instrument case for the digital manometer stands testo 550i, 550s and 557s. The form fit ensures that your instrument stays securely in place, along with hoses and sensors.
Similar products
testo 550i – measuring set with sensor and case
App-controlled manometer stand with wireless sensors and case
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- The smallest digital manometer stand on the market
- Maximum reliability thanks to an extremely robust instrument housing with protection class IP54
testo 557s – manometer stand with 4-way valve block
Smart digital manometer stand with Bluetooth and a 4-way valve block
- Fully wireless measurements and quick overview of all measurement results: thanks to Bluetooth sensor and large graphic display.
- Exceptionally compact and reliable thanks to the easy-to-handle, robust instrument housing with IP 54 protection class.
- Simple, wireless and flexible measurement and documentation








