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Measuring Range
-40 to +150 °C
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Accuracy
±0.2 °C (-10 to +50 °C)* ±0.4 °C (Remaining Range)*
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Resolution
0.1 °C
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 ms.The integrated temperature-compensated differential pressure sensor performs measurements to an accuracy of up to 0.5 Pa. In addition, you can attach up to 2 further optional probes to the measuring instrument. This means you can flexibly adapt the differential pressure measuring instrument to your application. You have the choice of the following probes: Differential pressure probesAbsolute pressure probesRelative pressure probesTemperature probes (e.g. surface probes or immersion and penetration probes)