Digital Differential Manometers


The Comark range of Dry Use Pressure Meters / Manometers is suitable for positive and negative gauge and differential pressure measurement. The following devices have been identified as being suitable for Dry or Normal Use.


  • Digital Differential Manometers - C9551

    0 ±2 psi

  • Digital Differential Manometers - C9553

    0 ±5 psi

  • Digital Differential Manometers - C9555

    0 ±30 psi

  • Digital Differential Manometers - C9557

    0 ±100 psi


  • Selectable pressure units* PSI, mbar, Bar, inH2O, inHg, mmHg, Torr, Pa, kPa, mmH2O, cmH20, Kg/cm2
  • Positive or negative (vacuum) pressure measurement
  • Adjustable zero value
  • Maximum, minimum pressure and hold function
  • Averaged reading function
  • Over-range indication
  • Selectable auto switch off
  • Silicone protection option available for liquid pressure measurement
*Dependent on model
Accuracy±0.2% of full scale (FS) at +23°C
Repeatability±0.1% of full scale (FS) at +23°C
Mean Temperature Coefficient of Reading<0.1% per °C
Operating Temperature Range0 to 50°C
Humidity Range10 to 90% RH non-condensing
EMCTested to EN61326-1 Criteria B performance
Environmental ProtectionIP67, BS:EN60529, IEC529
Battery*9V PP3 6F22 — MN1604 UCAR9V
125 hours (using MN1604)
Low Battery WarningDisplays BAT just before end point of battery
Over Pressure Indication– – – –
Over 9999 Reading IndicationLowest 4 digits blink
Connections1/8" BSP female
Dimensions175 x 82 x 32mm
Weight330gm including battery
Warranty2 Years

Additional information


C9551, C9553, C9555, C9557

You may also like…