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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Low pressure probe, refrigerant-proof stainless steel, up to 10 bar

Low pressure probe, refrigerant-proof stainless steel, up to...

HVAC Contractors

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Measuring range	-1 to +10 bar
Accuracy	±1 % of fsv
Overload rel. (low pressure)	25 bar

Operating temperature	-40 to +100°C
Zeroing	0.1 bar

Low pressure probe, refrigerant-proof stainless steel, up to...

Low pressure probe, refrigerant-proof stainless steel, up to...

Pressure measurement

General technical data