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 Leak testing at 0.5 bar to detect 200 Pascal pressure drop 100 Pa bi-directional range differential air pressure transmitter 10 kPa g range 0-5Vdc output submersible freshwater pressure sensor for water treatment use 10 kPa orifice plate differential pressure transmitter for water flow measurement