A flow-rate and conductivity transducer (FRACT) has been developed to measure small liquid flow rates (~10mLmin^-1) and conductivity on board a centrifuge rotor with sustained centrifugal acceleration of approximately 3000 g. Design and operation of the FRACT are discussed. Stationary validation, as well as dynamic validation aboard the rotating centrifuge, is described. The means of calibration is documented, and some example results are presented.