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testo 521 0...100 hPa / +-0.1 % fsv.
testo 521-2, differential pressure meter 0 to 100 hPa incl. battery and calibration protocol
The highly accurate differential pressure meter, testo 521, with an internal pressure sensor from 0 to 100 hPa is ideal for Pitot tube measurements in the range 5 to 100 m/s. testo 521 is available in 2 accuracy classes. testo 521-1 with an internal pressure sensor with Class 0.2, testo 521-2 with an internal pressure sensor with Class 0.1.
In the case of velocity speeds in the range from 1 to 12 m/s, you can carry out accurate measurements using the 100 Pa probe which can be attached externally.
The measurement data can be saved according to location and analysed on your PC or printed on site on your Testo printer.
- Temperature-compensated differential pressure sensor in instrumentnull
- Multi-point and timed mean calculation
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