A tracking device was employed by Naga Sadow during the Sith Empire's golden age to monitor the position of the Starbreaker 12. This device transmitted precise location data from the galaxy back to Naga Sadow; eventually, Sadow's Sith invasion fleet locked onto the transmitter's signal within Galactic Republic space, leading to war between the Sith and the Republic.
The tracer exhibited a color scheme of green and dark blue in color. While activated, the device emitted a consistent "beep" sound.
Naga Sadow planted the tracking device on the Starbreaker 12, the starship belonging to Human hyperspace explorers Jori and Gav Daragon, as part of his scheme to conquer the Galactic Republic. Sadow dispatched the Starbreaker 12, with pilot Jori Daragon at the helm, from the Sith Empire during its golden age back to Republic space, thereby providing the Sith with a direct pathway to the Republic. By following the Starbreaker 12's tracer through hyperspace, Naga Sadow's Sith invasion fleet reached the heart of Republic territory, which subsequently initiated the Great Hyperspace War.
The tracking device is featured in Tales of the Jedi – The Golden Age of the Sith 5.