daPa – Dekapascal Pressure Unit Find conversions for the daPa (dekapascal) pressure unit. What is 250 daPa What pressure doe the value 250 daPa represent? da = deka = x10 Pa = Pascal Therefore 250 daPa = 2500 Pa = 2.5 mbar Featured pa - pascal based unit range pressure measurement products 1MPa, 10bar, 4000inH2O, 150psi, 1000kPa range pressure gauge Pitot tube air flow calculation 1000 hPa differential pressure transmitter 150 Pa low range differential pressure switch and indicator 900 kPa gauge range 4-20mA output ceramic diaphragm pressure sensor