Static/Differential Pressure
Range¹:-28.0 to +28.0 mm Hg, -3735 to +3735 Pa
(-15 to +15 in. H2O)
Accuracy:  ±1% of reading ±1 Pa (±0.01 mm Hg, ±0.005 in. H2O)
Resolution: 0.1 Pa, 0.01 mm Hg (0.001 in. H2O)
Velocity From a Pitot Tube
Range² :1.27 to 78.7 m/s (250 to 15,500 ft/min)
Accuracy³: ±1.5% at 10.16 m/s (2,000 ft/min)
Resolution :0.1 m/s (1 ft/min)
Duct Size (PVM620)
Dimensions :1 to 635 cm in increments of 0.1 cm
(1 to 250 inches in increments of 0.1 in.)
Volumetric Flow Rate (PVM620)
Range :Actual range is a function of velocity, pressure,
duct size, and K factor
Instrument Temperature Range
Operating: 5 to 45°C (40 to 113°F)
Storage: -20 to 60°C (-4 to 140°F)
Data Storage Capabilities (PVM620 only)
Range 12,700+ samples and 100 test IDs
Logging Interval (PVM620 only)
From 1 second to I hour
Time Constant (PVM620 only)
User selectable
External Meter Dimensions
8.4 cm x 17.8 cm x 4.4 cm (3.3 in. x 7.0 in. x 1.8 in.)
Meter Weight with Batteries
0.6 lbs (0.27 kg)
Power Requirements
PVM620 Four AA-size batteries or optional AC adapter
PVM610 Four AA-size batteries