Creative Sensor Technology FSI series flow sensors feature proven impeller based technology designed for flow monitoring/flow control applications in irrigation, water conservation and related industries. The term sensor is used because this measurement device produces an output signal rather than a visual display. The PVC tee type sensor with socket connections is offered for service in all class and schedule rated PVC piping systems. The standard sensor output is a digital pulse proportional to flow. The electrical characteristics of the output signal duplicate other two wire digital signals making the standard sensor compatible with most manufacturer’s “smart” irrigation controller products. The pulse signal will travel up to 2,000 feet without amplification.