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Product Description
Wireless vacuum measurements via just one service port: The testo 552i app-controlled vacuum probe with Bluetooth enhances the Testo Smart Probes portfolio. It delivers reliable measurement results, is robust and easy to use the vacuum probe provides optimum support for proper evacuation of refrigeration and air conditioning systems and heat pumps.
testo 552i - App-controlled wireless vacuum probe
App-controlled testo 552i wireless vacuum probe, including batteries and calibration protocol.
Absolute Pressure| Measuring range | 0 to 0.39 psi / / 0 to 26.66 mbar / | 0 to 20000 micron | |
| Accuracy | ±(1 | ±10 micron + 10 % of mv (100 to 1000 micron) | |
| Resolution | 100 micron (2000 to 5000 micron) / | 1 micron (0 to 1000 micron) / | 10 micron (1000 to 2000 micron) / |
| Overload | absolute: 87.0 psi / 87 psi / absolute: 6.0 bar / 87 psi | (relative: 72.5 psi / 72 psi) / (relative: 5.0 bar / 72 psi) | |
| Weight | 5 oz. / 142 g |
| Dimensions | 6 x 1 x 1 in. (LxWxH) / 150 x 32 x 31 mm (LxWxH) |
| Operating temperature | 14.0° to 122.0 °F / -10 to +50 °C |
| Protection class | IP54 |
| System requirements | requires iOS 12.0 or newer; requires Android 6.0 or newer; requires mobile end device with Bluetooth 4.2 |
| Product colour | black/orange |
| Auto-off | 10 min* |
| Battery type | 3 x AAA |
| Battery life | 39 h |
| Connection | 7/16 UNF |
| Interface | Bluetooth® 4.2 |
| Storage temperature | -4.0° to 122.0 °F / -20 to +50 °C |
| * when not connected via Bluetooth |