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Extech HD700: Differential Pressure Manometer (2psi)

Low range (0 to 2psi), High Resolution (0.001psi) Gauge/Differential Pressure meter

Offering 11 selectable units of measure, the HD700 Differential Pressure Manometer can serve as a low range/high resolution Gauge or provide Differential Pressure up to 0 to 55.40 in. H2O (inches of water). Max/Min recording and Relative time stamp are useful features, as are HD700’s Data Hold and Auto Power Off functions. The 2psi HD700 also features Zero function for offset correction or measurement and a built-in USB interface. Comes complete with 9V battery, software with USB cable, AC Adaptor, connection hose, built-in stand, and hard carrying case.



  • ±2psi 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
  • Heavy duty, double-molded housing
  • Built-in USB port (Windows® compatible PC software and cable included)


Specifications Range (Max Resolution)
psi 2psi (0.001psi)
inH₂O 55.40inH₂O (0.01inH₂O)
mbar 137.8mbar (0.1mbar)
kPa 13.78kPa (0.01kPa)
inHg 4.072inHg (0.001inHg)
mmHg 103.4mmHg (0.1mmHg)
ozin² 32ozin² (0.01ozin²)
ftH₂O 4.616ftH₂O (0.001ftH₂O)
cmH₂O 140cmH₂O (0.1cmH₂O)
kgcm² 0.140kgcm² (0.001kgcm²)
bar 0.137bar (0.001bar)
Basic Accuracy ±0.3%FS
Dimensions/Weight Meter: 8.2×2.9×1.9″ (210x75x50mm)/ 9.8oz (280g)