The Testo 558s has a large colour touchscreen and intuitive controls, which make configuring, controlling, and documenting tasks straightforward. Even when wearing gloves, you can effortlessly navigate the manifold.
The manifold has IP54 protection and supports Class A3 and A2L flammable refrigerants, offering compatibility with over 96 refrigerants. You can mark frequently used gases as favourites for quick access.
Achieve precise readings with a 0.25 full-scale accuracy. The new measurement graphs provide a clear and easy-to-interpret visual of system analysis.
Record measurements for up to 30 minutes, with trend curves helping to spot anomalies in real time. Upgrade the manifold to track data for 72 hours if required.
Measurement data can be directly exported via the Testo Smart App, making it easy to send reports instantly from the field with just a few taps.
The Smart Vacuum Kits include two Testo 115i temperature clamps and a Testo 552i vacuum probe. The Heat Pump Kits include a Testo 560i refrigerant scale with a valve and a 770-3 clamp meter. 4-piece hose set versions are also available.
Operating Temperature | -20 to +50 °C | |
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Storage Temperature | -20 to +60 °C | |
Battery Type | Built-in rechargeable battery (USB-C): LI battery 18650 Replaceable battery: 3 AA alkaline batteries |
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Battery Life with Backlighting and Bluetooth | ≤ 70 hours | |
Auto Power Off | After 10 minutes when not connected via Bluetooth | |
Dimensions | 229 x 112.5 x 71 mm | |
Weight | 1.3 kg | |
Protection Class | IP54 | |
Display | Capacitive touchscreen | |
Bluetooth Technology/Range | Bluetooth 5.0/150 m | |
Data Logging | Available as an optional upgrade via in-app purchase (72h data logging) | |
Sensor Types | Pressure | Temperature |
Measuring Range | -1 to 60 bar | -50 to +150 °C |
Accuracy (at 22 °C) | ±0.25 % fs | ±0.5 °C |
Solution | 0.01 bar | 0.1 °C |
Probe connections | 3 x 7/16" - UNF + 1 x 5/8" - UNF |
2 x plug-in (NTC) |
Overload | 65 bar | - |