... s (CFM,CMM) 2).m/s, ft/min, knots, Km/hr, mph 3).Tempe.Measurement Datalogging Air Flow Meter AVM-07( ... RS-232) with Free Shipping Flow (CFM,CMM) Instant, Ave, 2/3max Flow Measurement Velocity m/s, ft/min, knots, ... hour Range of Area (CMM) : 0.01~9999 m 2 Range of Wind Flow (CMM) : 0.01~9999 x 100 (CFM) : ... 0.01~9999 ft 2 (CFM) : 0.01~9999 x 100Unit ...