The testo 552i wireless vacuum probe provides the Testo Smart Probes portfolio with the option of measuring vacuum wirelessly and via just one service port. This prevents leaks and means that you do not have to pull the vacuum through the manifold. The integrated 45° angle allows you to work flexibly at any service connection. The testo 552i automatically connects to testo 550s and testo 557s via Bluetooth. Used with the testo Smart
App, the Smart Probe is also perfect for quick vacuum measurement on its own. Thanks to its proven quality and great durability, you can rely on your wireless vacuum probe in any conditions










testo 552i Smart Probe vacuum gauge
Ref: 220902
The testo 552i wireless vacuum probe provides the Testo Smart Probes portfolio with the option of measuring vacuum wirelessly and via just one service port. This prevents leaks and means that you do not have to pull the vacuum through the manifold. The integrated 45° angle allows you to work flexibly at any service connection.
- Display : Digital
- Identify vacuum quickly and easily by means of the graphical display in the App or on the digital manifold screen
- Connects automatically via Bluetooth to the testo Smart App and digital manifolds
- Exceptionally compact and reliable thanks to the robust, easy-to-handle housing with IP54 protection class
- One app for everything: Display, calculation, customer data and documentation
- Easy installation at any service port thanks to the integrated 45 angle
- Measuring range 0 to 26.66 mbar/0 to 20000 microns
- Accuracy ±1 digit ±10 microns + 10% of m.v. (100 to 1000 microns
- Resolution 1 micron (0 to 1000 microns) 10 microns (1000 to 2000 microns) 100 microns (2000 to 5000 microns)
- Bluetooth® range 130 m
- testo 552i, app-controlled wireless vacuum probe, including batteries and calibration protocol
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Specification for: testo 552i Smart Probe vacuum gauge
| Accuracy | 10 micron + 10 % of mv (100 to 1000 micron) (1 |
| Auto-off | 10 min* |
| Battery life | 39 h |
| Battery type | 3 AAA micro batteries |
| Connection | 7/16 UNF |
| Dimensions | 150 x 32 x 31 mm (LxWxH) |
| Display | Digital |
| In Box | App-controlled testo 552i wireless vacuum probe including batteries and calibration protocol. |
| Interface | Bluetooth 4.2 |
| Measuring range | 0 to 26.66 mbar / 0 to 20000 micron |
| MPN | 0564 2552 |
| Operating temperature | -10 to +50 C |
| Overload | absolute: 6.0 bar / 87 psi (relative: 5.0 bar / 72 psi) |
| Product colour | black/orange |
| Protection class | IP54 |
| Resolution | 1 micron (0 to 1000 micron) / 10 micron (1000 to 2000 micron) / 100 micron (2000 to 5000 micron) / |
| Storage temperature | -20 to +50 C |
| System requirements | requires iOS 13.0 or newer; requires Android 8.0 or newer; requires mobile end device with Bluetooth 4.2 |
| Weight | 142 g |