The ProPulse Turbine Flow Meter Sensor provides superior performance and delivers accurate Ultra Low Flow measurement that is highly repeatable under the most demanding of industrial environments. The ProPulse Series consists of one universal body that can be customized into six 5 selectable flow ranges. Changing from one flow range to another is simply achieved by inserting a very precise flow jet, no special tools required for change out …truly Plug and Play. The ProPulse operates using a PVDF rotor with encapsulated magnetic inserts which rotate on a long wearing set of sapphire bearings designed to provide years of reliability. As the rotor spins the magnetic field produced by the magnets is pick up via a Hall Effect Sensor which converts the rotation into a square wave NPN pulse output that can be sent directly to a metering pump or local display.