Vane wheel multi-jet type series water meter is the device that fitted into a closed conduit, which consists of a moving element set in motion directly by the velocity of the water flow, its turbine rotor rotates about the axis perpendicular to the flow of water in the meter. Working principle: Velocity of the water flow strikes the vane wheel at the tip of vane blades to make it rotating.The rotation of the vane wheel (proportional to the velocity of the water flow) is transmitted directly to the central gear in the sealed register by the magnet coupling, so the sealed register totalizes the rotation of the vane wheel and indicates the water volume passing through the meter