An apparatus for determining a characteristic of a fluid flow within a pipe is provided, wherein the apparatus includes a separating device for separating the fluid into a gas component and a liquid component and directing the gas component to flow within a gas leg portion of the pipe and the liquid component to flow within a liquid portion of the pipe. The apparatus includes a gas leg portion metering device for generating gas component data and a liquid leg portion metering device for generating liquid component data. Moreover, the apparatus includes a processing device communicated with at least one of the gas leg portion metering device and the liquid leg portion metering device, the processing device being configured to receive and process at least one of the gas component data and the liquid component data to generate fluid flow data responsive to a fluid flow characteristic.