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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<div style="background-color:#dae4ea; border: 1px solid #648798; padding: 10px;"><b>Product no longer available. Are you familiar with the alternative?<br/>Why not enjoy the benefits that it has to offer: <a href="…/p/0563-1512">>> To the product</a></b></div>

The desktop mains unit is versatile to use thanks to its international connection options.

Desk-top power supply with international connection options

Desk-top instrument supply with international connection options

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Product colour	Black
Weight	440 g

Desk-top power supply with international connection options

Desk-top power supply with international connection options

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