The FlowMaster system family is designed to measure instantaneous 2D- and 3D velocity fields using the well-established Particle Image Velocimetry (PIV) technique. The different types are measurements on a plane/sheet (2D and Stereo-PIV) and in a volume (Tomo-PIV).While 2D-PIV measures both components on a plane, Stereo-PIV measures also the out-of-plane component on a plane. Tomo-PIV measures all three vector components in a volume. For all types the measurements can be performed at either low frame rate ("Low-Speed"-PIV) or at several kHz ("Time-Resolved"-PIV).