Abstract: Apparatus (300) and method for providing measurements relating to different phase components of a flowing fluid. The apparatus includes a device (306) configured to obtain, in use, at least one input (302, 304) representing a velocity of flowing fluid produced by at least one measuring device (302, 304) non-intrusively/externally mounted on a conduit (100) containing the flowing fluid. The apparatus also includes a device (306) configured to use the at least one velocity input to calculate (308) a total volumetric flow of the flowing fluid, and a device (306) configured to use the velocity input and the calculated total volumetric flow to compute (310, 312) at least one measurement relating to at least one phase component of the flowing fluid.