Explain what exactly? What questions do you have?
A ship gets the highest level of each cloaking ability from all the components (and ship hull abilities) it has on it. The highest levels are used for what can detect it. A scanner can detect a ship if only one ability it has can detect one level of a cloaking type on a ship. So if a ship has level 50 in all cloaking except Temporal, where it has only 3, a level 3 Temporal Scanner could detect it (keep in mind the ability values are offset a bit
).