Load cells on the stay cables with SMS alerts on abnormal tension, plus weather stations for just-in-time maintenance.

Load-cell monitoring board branded Suli Engenharia, used to monitor guy cable tension

A cable-guyed mast — like the 51 metre towers at Cristalino Jungle Lodge — depends entirely on its stay cables holding the tension they were set to. That is not a fact to check once at handover and forget; cable tension shifts with temperature, wind loading and, eventually, wear, and the failure mode for a guyed structure is rarely dramatic until it suddenly is.

Suli Engenharia builds its own electronic monitoring board, reading load cells fitted to the guy cables and sending an SMS alert if tension moves outside the expected range — a maintenance visit gets scheduled because the data called for one, not because someone happened to notice something looked off on a routine walk-around. Weather stations at the site round out the same idea: know the conditions the structure is actually experiencing, not the conditions assumed at design time.