Air Flow Capture Hood, Maximum Air Flow Measurement 2,500 cfm, Minimum Air Flow Measurement 25 cfm, Overall Height 42 in, Base Diameter 18 in, Differential Pressure +/-3735 Pa, Hood Opening Length 2 ft, Hood Opening Width 2 ft, Includes (2) Static Pressure Probes, 16 ft Neoprene Tubing, 18 in Pitot Probe, 2 x 2 ft Air Capture Hood Base, Detachable Micromanometer, Multi-Country AC Adapter, NIST Traceable Certificate of Calibration, USB Cable, Wheeled Carrying Case, Display Type Digital