The Bently Nevada 21000-34-05-15-029-04-02 is a vibration transducer, consisting of a proximity probe and an extension cable, designed for direct measurement of shaft radial displacement in industrial machinery.
Bently Nevada 21000-34-05-15-29-04-02 is a 3500/42M Proximitor Seismic Monitor. It processes signals from vibration and position sensors to protect critical machinery like turbines and compressors.