The Signet 515 Rotor-X paddlewheel flow sensors are offered in a variety of materials for a range of pipe sizes. Paddle wheel flow sensor material include Polyprpylene and PVDF. The 515 Rotor-X is highly versatile and usable with many liquid process flow solutions. 515 Rotor-X paddle wheel flow sensors can be installed using Signets comprehensive line of custom flow fittings.