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Extech HD700 Differential Pressure Manometer (2 PSI)

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  • ±2 PSI range, 11 selectable units of measure
  • Max/Min/Avg recording and relative time stamp
  • Data hold, auto power off and zero function
  • Large LCD display with backlighting
  • Built-in USB port (Windows® compatible PC software and cable included)
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Product Information

Low-Range (0 to 2 PSI), High-Resolution (0.001 PSI) Gauge/Differential Pressure Meter

The Extech HD700 Series manometer is a handheld, low range/high-resolution manometer capable of gauge or differential pressure measurements. It is ideal for use when testing engines, HVAC systems, and more.


The HD700 measures gauge and differential pressure in the range of ±2.000 PSI. It offers eleven (11) units of measure (user selectable by front panel push button) and has a differential input that uses convenient quick-disconnect fittings.


The HD700 features a large backlit LCD display, so viewing readings is clear and easy, even in poorly lit job site conditions. The unit displays Max/Min/Avg recordings as well as relative time stamps. A convenient Data Hold feature allows you to take and hold readings when using the HD700 in areas where the screen may not be easily visible.


Rugged and durable, the HD700 features a heavy-duty double-molded housing that holds up well against the rigors of rough, daily use during commercial or industrial inspections. 


To help conserve battery life, the unit will automatically power off if left unused. A 9V battery and optional 100V-240V switching AC adapter are also included, giving you a variety of power options. 



  • HD700 Differential Pressure Manometer
  • 9V battery
  • Windows® compatible software with USB cable
  • 100V-240V switching AC adapter
  • Two connection hoses
  • Built-in stand
  • Hard carrying case
  Range Resolution
inH2O 55.40 0.01in
psi 2 0.001
mbar 137.8 0.1
kPa 13.79 0.01
inHg 4.072 0.001
mmHg 103.4 0.1
ozin2 32 0.01
ftH2O 4.612 0.001
cmH2O 140 0.1
kgcm2 0.140 0.001
bar 0.137 0.001


More Information
Brand Extech
Category Pressure Monitoring
Condition new
Manual / Schematic