C-3PO's thermosensors.
Thermosensors were devices installed in the upper-back of 3PO and RA-7 protocol droids that were critical to the droid's survival.[1]
Appearances
- Star Wars: Episode I The Phantom Menace
- Star Wars: Episode II Attack of the Clones
- Star Wars: The Clone Wars film
- Star Wars: Episode III Revenge of the Sith
Star Wars Rebels — "Droids in Distress"
Star Wars Rebels — "The Forgotten Droid" (First identified as thermosensor)- Star Wars: Episode IV A New Hope (First appearance)
- Star Wars: Episode V The Empire Strikes Back
- Star Wars: Episode VI Return of the Jedi
- Star Wars: Episode VII The Force Awakens
- Star Wars: Episode VIII The Last Jedi
- Star Wars: Episode IX The Rise of Skywalker