The testo 552 is a digital vacuum gauge for refrigeration and heat pump systems featuring Bluetooth connectivity for data monitoring and documentation.
The testo 552 is a digital vacuum gauge designed for evacuating refrigeration/air conditioning systems and heat pumps. It measures absolute pressure down to the lowest possible values and indicates the state of dehydration of the system with high precision. The device features a Bluetooth interface that connects to the testo Smart Probes application on a smartphone or tablet, allowing for comfortable monitoring of the absolute pressure achieved during vacuum generation. Measured data can be documented in the application and sent directly via email. This manual is written in Portuguese.
| Measurement Range (Vacuum) | 0 … +26.66 mbar / 0 … 20 000 microns |
|---|---|
| Accuracy (Vacuum) | ±1 digit (at +22 °C) ± 10 microns + 10 % of v.m. |
| Resolution (Vacuum) | 1 micron (0 … 1 000 microns) |
| Absolute Overpressure | 6 bar / 87 psi |
| Relative Overpressure | 5 bar / 72 psi |
| Operating Temperature | -10 … +50 °C |
| Protection Class | IP 42 |
| Battery Type | 2 AA batteries |
| Autonomy | 50 h (without Bluetooth / without illumination) |
| Connection | 2 x 7/16" UNF, 1 x Mini-Din |
| Warranty | 2 years |
The testo 552 connects to the testo Smart Probes application installed on a smartphone or tablet.
Yes, measured results can be documented in the application and sent directly via email.
Yes, it has an optical alarm when limit values are exceeded.
The device has a protection class of IP 42, making it robust and resistant to water and dirt.