... blower pressures,filter resistance 3.0-60pa 4.CE certificat Differential pressure measurement gauge is widely used fan and blower ... pressures, filter resistance, wind speed, furnace pressure, orifice differential pressure, drum water level and liquid pressure amplifier or hydraulic ... 70 (21.1).Pressure Rating: 15PSI(1.03 bar)Ambient Temperature Range: 20 to 140 (-7 to 60)Standard gauge ...