Bently Nevada 3500/42M 140471-01 Prox/Velom I/O Module with Internal Terminations140471 01 Proximitor Seismic Monitor I O Module by Bently Nevada The 140471 01 is a Proximitor Seismic Monitor I O Module, designed and manufactured by Bently Nevada as part of the 3500 Series. This module is used for monitoring seismic activity and serves as an interface between seismic sensors and a central monitoring or control system. Its primary role is to collect input from seismic sensors, process the data, and provide output to the monitoring