This temperature measuring instrument from Testo is approved for official control measurements carried out by food inspectors, assessors and authorities. With NTC and Pt100 technology, this 1-channel temperature measuring instrument is exceptionally accurate.

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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9V rech. battery for instrument

9V rech. battery for instrument