The described embodiments provide a system for performing an action based on a change in a status of a wired or wireless network connection for the system. The tensioned elongated element is arranged so as to be displaced in its longitudinal direction into or out of the subsea wellhead element via an entry at a top end of the latter. The second lumen has first and second vent ports, with the second vent port being formed along the elongated body such that that when the needle is placed at the specimen site, the second vent port is positioned at the specimen site. This allows for rotation of the scanner mirror pair in response to the vertical translation of the transfer mirror pair and maintains the incident light focus on the metal filmsample layer while varying the angle of incidence and thereby exciting the surface plasmon resonance at the thin metal film layer.