Using a cable with sinking weight or wading rod and will accurately measure stream flow velocities from 0.3 to 3.5 meters per second with cups. (Also available in measuring range up to 6 meter per second) The cup type current meter manufactured as per IS 3910-1966. You can connect this current meter to an automatic counter/Water Velocity Indicator (Sold Separately). The calibration chart provided with the meter gives the velocity in