MAN-45 Professional Digital Manometer, Portable Handheld Air Vacuum/ Gas Pressure Gauge Meter 11 Units with Backlight, ±13.78kPa ±2PSI, Suitable for Differential Pressure of 1-2 Pipes, Ventilation, Air Condition System Measurement

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Measures air pressure of the single pipe or differential pressure of 2 pipes. Has 11 selectable units of measurement kPa, psi, kgfcm2, ozin2, bar, mbar, inHg, mmHg, inH2O, ftH2O, cmH2O.

Best for measuring the ventilation and air condition systems. Widely used for gas measurement, calibration, and any troubleshooting of any gas pressure systems.

Has additional features like data hold and auto power off disabled. Careful use of this meter will provide years of reliable service.



  • HVAC/R refrigeration air-conditioning industry used to measure the pressure difference
  • Medical facilities
  • Measure negative pressure setting to ensure indoor air pests will not pollute the air in the outside world
  • Measure the positive pressure
  • Computer peripheral equipment pneumatic control



  • 11 Selectable units of Measurement: kPa, psi, kgfcm2, ozin2, bar, mbar, inHg, mmHg, inH2O, ftH2O, cmH2O
  • Differential pressure measurement
  • Max / minimum / Average reading record function
  • Large LCD backlit dual display
  • Zeroing, offset and data compensation
  • Low battery display and Auto power off set up function
  • Data Hold and Error code Functions
  • Over/ Under range indicator
  • User can re-calibrate the meter at anytime



  • Accuracy: ±0.3% FSO (at 25°C)
  • Repeatability: ±0.2% (Max+0.5%FSO)
  • Linearity/Hysteresis: ±0.29% FSO
  • Response Time: 0.5 Seconds
  • Over Range Display Indicator: Hi
  • Under Range Display Indicator: Lo
  • Operating Conditions: 0 ~ 50°C(32 ~ 122°F)
  • Storage Conditions: -10 ~ 60°C (14 ~ 140°F)
  • Power Supply: 9V battery
  • Size: 165 x 80 x 45mm
  • Weight: 220g (battery not included)


Set Includes:

  • 1 x Digital Manometer
  • 2 x Plastic Hose
  • 1 x Metal Connector
  • 1 x Carry Pouch
  • 1 x 9V battery
  • English Manual

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