ManometerPart Numbers: 5 psi model: ESAZ-19; 30 psi model: ESAZ-20

Use digital manometers to measure gas pressure across a sensor to determine the difference in pressure, then to compensate for measurement made above or below standard pressure. As the concentration increase or decreases, the apparent measurement of gas concentration increases or decreases proportionally.

We have 2 models available: 5psi and 30psi. Both feature 11 selectable units of measure: inH2O, psi, bar, mbar, kPa, inHg, mmHg, oz/in2, ftH2O, cmH2O, kg/cm2. Additional features include: Data Hold, and auto power off. The manometer is calibrated by measuring a reference pressure.


  • Digital display of gauge or differential pressure
  • Select from one of 11 pressure units of measure: psi, inH2O, bar, mmHg, ozin2, kgcm2, kPa, ftH2O, inHg, cmH2O & mbar
  • Bright back-light
  • Data hold & record features
  • Min/max button
  • Simple 4mm fittings for hose connection
  • Auto power off & low battery indicator
  • Ideal for medical equipment, computer peripherals, pneumatic controls, HVAC and more
  • Optional data logger kit


  • Display: LCD
  • Accuracy: ±0.3% of full scale at ±25C
  • Repeatability: ±0.2% at 0.5% of full scale
  • Linearity/Hysteresis: ±0.29% to 1% of full scale
  • Combined Accuracy: ±1% of full scale
  • Response Time: 0.5 seconds typical
  • Compatibility: Air or Non-Corrosive Gases
  • Low Battery Indicator: Yes
  • Connectors: Two metal 4mm ports for flexible tubing
  • Compensated Temperature Range: 0 to 50ºC
  • Operating Conditions: 0 to 50ºC; < 80% RH non-condensing
  • Storage Conditions: -20 to 60ºC; <80% RH non-condensing
  • Dimensions/Weight: 182 x 72 x 30mm; 220g
  • Power: 1 x 9V battery
  • Warranty: 1 year


ESAZ-11 optional data logging kit

Manometer Data LoggerYour manometer can be turned into a tethered data logger, using your computer’s hard drive for storage. Simply connect the external USB device to turn the manometer into a data logger. Data can be saved to industry-standard CSV file format for processing.



ESAZ-19-20 Manometer Manual