Abstract: The system for mounting a vibration transducer at a machine includes a mounting pad made from ferrous magnetic material and configured to be mounted at a measurement location of the machine; and a magnetic base comprising a transducer fixation structure configured to releasably fix a vibration transducer unit at the magnet base and a pad engagement structure configured to releasably engage with a mating engagement structure of the mounting pad so as to magnetically fix the magnet base at the mounting pad for vibration measurement. The engagement structure of the mounting pad includes at least one groove and is asymmetric in a direction orthogonal to the longitudinal direction of the at least one groove in such a manner that engagement of the engagement structure of the mounting pad to ensure proper orientation of the transducer unit with regard to the machine.