The high-precision testo 521-1 differential pressure measuring instrument is ideal for accurate differential pressure measurements in air conditioning and ventilation technology, for instance for pressure drop on filters, checking fans and extractors or for Pitot tube measurements.

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This DAkkS calibration certificate is used to calibrate your measuring device or sensor. Calibration is carried out in accordance with the DAkkS standard.

DAkkS calibration certificate pressure - with 9 measuring points

DAkkS calibration certificate/Pressure

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