Universal Water Current Meter is a world recognized instrument. This current meter is suspended in the water using a cable with sinking weight or wading rod and will accurately measure stream flow velocities 0.04 m/s up to 10 meters per second with Multiple propellers. Magnetic The free ends of the proximity switch cable are connected to a Water Velocity Indicator. The calibration chart provided with the instruments. Universal Water Current Meter serves for determination of current velocities in water courses, canals, rivers and the sea.