Later, pfes063 left the lab. A field technician carried it in a padded case to a coastal monitoring station where the sensor board became part of a larger system measuring structural strain on an aging pier. There, pfes063’s steady pulse of data revealed subtle seasonal shifts—tiny stress cycles that, when aggregated over months, signaled the slow creep of corrosion. The warning allowed managers to schedule targeted maintenance, averting costly emergency repairs and a potential safety incident.