Use the robust, 350 mm long Pitot tube with a diameter of 7 mm for measuring flow velocity (in combination with a compatible measuring instrument / probe).
Gas U-Tube Meters Accessories. ;ul> ;li>Connection hose, silicone, 5m long - max load 700hPa (mbar) ;/li> ;li>Pressure connection hose, single, Ø:4/6 mm, 50 cm, long, without connection adaptor ;/l...