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: 0560 5210
testo 521-1 - differential pressure measuring instrument (0.2 % of f.v.)
: 0560 5211
testo 521-2 - differential pressure measuring instrument (0.1 % of f.v.)
: 0560 5213
testo 521-3 - Differential pressure measuring instrument (up to 2.5 hPa)
: 0560 5280
testo 526-1 - High-precision differential pressure measuring instrument
: 0560 5281
testo 526-2 - High-precision differential pressure measuring instrument