Static/Differential Pressure

Range -15 to +15 in. H2O (-28.0 to +28.0 mm Hg, -3735 to +3735 Pa)
Accuracy ±1% of reading ±0.005 in. H2O(±1 Pa, ±0.01 mm Hg)
Resolution 0.001 in. H2O (0.1 Pa, 0.01 mm Hg)

Velocity From a Pitot Tube

Range 250 to 15,500 ft/min (1.27 to 78.7 m/s)
Accuracy ±1.5% at 2,000 ft/min (10.16 m/s)
Resolution ft/min (0.1 m/s)

Duct Size

Dimensions 1 to 250 inches in increments of 0.1 in. (1 to 635 cm in increments of 0.1 cm)

Volumetric Flow Rate Range Actual range is a function of velocity,pressure, duct size, and K factor
Instrument Temperature Range

Operating 40 to 113°F (5 to 45°C)
Storage -4 to 140°F (-20 to 60°C)

Data Storage Capabilities

Range 12,700+ samples and 100 test IDs
Logging Interval 1 second to I hour
Time Constant User selectable

External Meter Dimensions 3.3 in x 7.0 in x 1.8 in (8.4 cm x 17.8 cm x 4.4 cm)
Meter Weight with Batteries 0.6 lbs. (0.27 kg)
Power Requirements AXD620 Four AA-size batteries oroptional AC adapter