Pitot tubes, also known as pitot probes, are a flow measurement device used to measure the fluid flow velocity in wind tunnel experiments. These tubes are made of corrosion-resistant stainless steel with permanently etched insertion depth graduations for withstanding erosive conditions. They have silver soldered connections for a leak-proof operation and require no additional calibration due to the ASHRAE-rated tip design. Choose from a wide range of these pitot tubes available in duct diameters of 10, 12, 12.5 and 14 inches on Raptor Supplies, an authorised Dwyer Instruments distributor.