Prowirl C 200 is a product line of carbon steel vortex meters dedicated to the Canadian and American market. The carbon steel sensor offers higher resistance. The Prowirl O measuring tube is an all-cast design. It is especially designed for pressure ranges >40 bar and up to 250 bar. The proven and patented capacitive. The Prowirl F measuring tube is the first choice in heavy duty applications. The proven and patented capacitive DSC sensor ensures high precision measured.