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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Pitotova cijev od nehrđajućeg čelika (duljine 1000 mm) omogućuje precizna mjerenja brzine protoka i temperature – idealno za zahtjevne primjene.

Pitot tube, stainless steel, 1000 mm long, measures velocity...

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HQ instrument 

Measuring range	+1 to +30 m/s
Length	1.000 mm
Diameter	8 mm
Pitot tube factor	0,67

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Pitot tube, stainless steel, 1000 mm long, measures velocity...

Pitot tube, stainless steel, 1000 mm long, measures velocity...

Temperature - TC Type K (NiCr-Ni)

General technical data

Measuring range	0 to +600 °C