Testo 558s Digital Manifold
The Testo 558s Digital Manifold is a professional digital manifold designed for refrigeration, air conditioning and heat pump engineers who need fast, accurate and reliable measurements. With an intuitive colour touchscreen, Bluetooth connectivity and a durable 4-way valve block, it helps you complete servicing, commissioning and fault finding with confidence.
Compatible with more than 96 refrigerants, including A2L and A3 refrigerants, the Testo 558s is ready for modern refrigeration and HVAC systems. It also features automatic superheat and subcooling calculations, live measurement graphs and wireless connectivity with the Testo Smart App, helping you work more efficiently on every job.
Why Choose the Testo 558s?
Whether you’re carrying out routine maintenance or commissioning a new installation, the Testo 558s simplifies every stage of the job. The large colour touchscreen provides clear readings, while physical buttons allow comfortable operation when wearing gloves. In addition, the IP54-rated housing and hybrid battery system ensure dependable performance on site.
Key Features
- Large colour touchscreen with glove-friendly controls
- Bluetooth connectivity with the free Testo Smart App
- Supports over 96 refrigerants, including A2L and A3
- Automatic superheat and subcooling calculations
- Pressure testing, evacuation and charging functions
- Measurement trend graphs and onboard data logging
- IP54-rated housing for site use
- Rechargeable USB-C battery with AA battery backup
- Free firmware updates via over-the-air software updates
Choose the Right Kit
The Testo 558s is available in several configurations, allowing you to choose the kit that best suits your work.
Smart Vacuum Kit
The Smart Vacuum Kit includes everything needed for accurate digital pressure, temperature and vacuum measurements. Alongside the Testo 558s manifold, you’ll receive two Testo 115i wireless clamp thermometers and a Testo 552i wireless vacuum probe. Together, these instruments allow you to measure system pressures, pipe temperatures and evacuation levels wirelessly, reducing setup time and improving accuracy.
Heat Pump Kit
The Heat Pump Kit is designed for engineers working on refrigeration systems and heat pumps. In addition to the manifold, wireless temperature clamps and vacuum probe, this kit includes the Testo 560i Bluetooth refrigerant scale with refrigerant valve and the Testo 770-3 Bluetooth clamp meter.
The refrigerant scale helps you charge systems accurately by weight, while the wireless refrigerant valve allows automatic charging based on target superheat, subcooling or refrigerant weight. The Bluetooth clamp meter provides safe electrical measurements, making this the most complete servicing kit for heat pump engineers.
Optional Hose Set
Choose the optional 4-piece hose set to start work straight away. The hoses connect your digital manifold to refrigeration and air conditioning systems for pressure testing, evacuation, refrigerant charging and servicing. Adding the hose set means your kit arrives ready for use straight out of the box.
Optional Sight Glass
You can also choose a hose set with an integrated sight glass. The sight glass allows you to monitor refrigerant flow during charging and recovery, making it easier to identify bubbles, check refrigerant condition and confirm when liquid refrigerant is flowing correctly. This provides greater confidence during charging and system servicing.
Wireless Connectivity
The Testo 558s connects to the free Testo Smart App using Bluetooth. You can monitor live readings, record measurements, generate professional reports and send documentation directly from site. Trend graphs help identify changes during testing, while optional extended logging allows recordings of up to 72 hours.
Built for Professional Engineers
Every Testo 558s features an IP54-rated housing, 0.25% full-scale pressure accuracy and a hybrid power system that combines a rechargeable USB-C battery with replaceable AA batteries. As a result, you can rely on accurate measurements and dependable performance throughout the working day.
Kit Comparison
| Included |
Manifold Only
0564 5581 |
Smart Vacuum Kit
0564 5582 02 |
Smart Vacuum Kit + Hose Set
0564 5583 02 |
Heat Pump Kit
0564 5585 02 |
Heat Pump Kit + Hose Set
0564 5586 02 |
Ultimate Refrigeration Kit
300564 5000 04 |
| Testo 558s Digital Manifold |
✓ |
✓ |
✓ |
✓ |
✓ |
✓ |
| Professional Transport Case |
— |
✓ |
✓ |
✓ |
✓ |
✓ |
| 2 × Testo 115i Wireless Clamp Thermometers |
— |
✓ |
✓ |
✓ |
✓ |
✓ |
| Testo 552i Wireless Vacuum Probe |
— |
✓ |
✓ |
✓ |
✓ |
✓ |
| 4-Piece Refrigerant Hose Set |
— |
— |
✓ |
— |
✓ |
✓ |
| Testo 560i Refrigerant Scale |
— |
— |
— |
✓ |
✓ |
✓ |
| Testo 560i Intelligent Refrigerant Valve |
— |
— |
— |
✓ |
✓ |
✓ |
| Testo 565i Smart Vacuum Pump |
— |
— |
— |
— |
— |
✓ |
| Testo 316-3 Refrigerant Leak Detector |
— |
— |
— |
— |
— |
✓ |
| Testo 770-3 TRMS Bluetooth Clamp Meter |
— |
— |
— |
✓ |
✓ |
✓ |
| USB-C Charging Cable |
✓ |
✓ |
✓ |
✓ |
✓ |
✓ |
| AA Batteries |
— |
✓ |
✓ |
✓ |
✓ |
✓ |
| Calibration Protocol |
✓ |
✓ |
✓ |
✓ |
✓ |
✓ |
Why Buy from Test4Less?
At Test4Less, we supply genuine Testo instruments backed by expert technical advice and competitive pricing. Whether you choose the Smart Vacuum Kit, the Heat Pump Kit or add the optional hose set and sight glass, you’ll receive professional equipment designed to make refrigeration and HVAC servicing quicker, easier and more accurate.
