The testo 521-3 differential pressure measuring instrument is designed for high-precision differential pressure measurements in air conditioning and ventilation technology. It can be used, for example, for measurements in clean rooms and for flue inspections – thanks to a high level of accuracy and outstanding resolution. In conjunction with a Pitot tube (optional), the integrated pressure sensor measures flow velocities of +1 to +20 m/s.
- Testo 521-3 differential pressure measuring instrument
- including calibration protocol
-40 to +150 °C
±0.2 °C (-10 to +50 °C) 0.4 °C (Remaining Range)