Extech HD750 Differential Pressure Manometer (5psi)


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Extech HD750 Differential Pressure Manometer (5psi)


  • Two models to choose from:
    • HD700 (±2psi range)
    • HD750 (±5psi range)
  • 11 selectable units of measure
  • Max/Min/Avg recording and Relative time stamp
  • Data Hold and Auto power off functions
  • Large LCD display with backlighting
  • Zero function for offset correction or measurement
  • Built-in USB (software and cable included)
  • USB port includes software
  • Includes Windows® compatible software with cable, 9V battery, two connection hoses, 100V-240V switching AC Adaptor, and hard carrying case


  • Industrial/manufacturing processes
  • Pressure in vents
  • Pressure in ducts
  • Laboratory

The Extech HD750: Differential Pressure Manometer (5psi) offers a low range of 0 to 5 psi, and a high resolution of 0.001 psi. In addition to this, the equipment comes with up to 11 selectable units in which the measurements can be taken. This can be selected by you to adapt the manometer to suit the job that you are working on. The results that are taken will then be shown to you within seconds on the large LCD display that also has a backlight, perfect for when you may be working in darkened conditions.

Extech have also included several extra features for data analysis including maximum, minimum and average results and a relative time stamp so you can know the exact date and time that measurements were taken. There is also a data hold function,  a zero function which kicks in automatically as soon as the device is switched on and an auto power off, for when it has been inactive for too long.

This gauge pressure meter is heavy duty too, meaning that it can be taken on almost any job and withstand most of the tough conditions you through at it. It is also made from double moulded housing, for that extra bit of protection.

Built into this Extech HD750: Differential Pressure Manometer (5psi) is a USB port with a cable included so you can transfer the results you get onto your computer and analyse them further. The Windows compatible computer software is also included, so you can get working straight away without worrying about ordering extra parts.


Specifications Range Resolution
inH2O 138.3inH2O 0.01inH2O
psi 5psi 0.001psi
mbar 344.7mbar 0.1mbar
kPa 34.47kPa 0.01kPa
inHg 10.18inHg 0.001inHg
mmHg 258.5mmHg 0.1mmHg
ozin2 80ozin2 0.01ozin2
ftH2O 11.53ftH2O 0.001ftH2O
cmH2O 350.1cmH2O 0.1cmH2O
kgcm2 0.351kgcm2 0.001kgcm2
bar 0.344bar 0.001bar


Click here for product datasheet

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    • Extech HD750 Differential Pressure Manometer (5psi)