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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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The testo 526-2 high-precision differential pressure measuring instrument is ideally suited for checking pressure in sensitive industrial processes, thanks to a measuring accuracy of &plusmn; 0.05% of final value. Two additional pressure and temperature probes can also be attached.

Precision pressure probe, 100 Pa, in robust metal housing with impact protection, incl. magnet for fast attachment, to measure differential pressure and flow speeds (in combination with Pitot tube)

Operating temperature	0 to +50 °C
Static pressure	100 hPa
Zeroing	20 hPa

Measuring range	0 to +100 Pa
Accuracy	±(0.3 Pa ±0.5 % of mv)
Resolution	0.1 Pa
Overload	50 hPa

Precision pressure probe, 100 Pa, in robust metal housing wi...

Precision pressure probe, 100 Pa, in robust metal housing wi...

General technical data

Differential Pressure - Piezoresistive