• ±0.5psi 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)

Offering 11 selectable units of measure, the HD755 Differential Pressure Manometer can serve as a low range/high resolution Gauge or provide Differential Pressure up to 0 to 13.85 in. H2O (inches of water). Max/Min recording and Relative time stamp are useful features, as are HD755's Data Hold and Auto Power Off functions. The 0.5psi HD755 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.