A tracking dart was a device that could be fired into an animal in order to track it. Kell Tolkani and several other Rebels used a tracking dart on a tauntaun while they scouted the planet Hoth. However, the planet's weather meant that the dart had only a three kilometer range.[1]
Appearances
Star Wars Rebels — "Kindred"- "A Naturalist on Hoth" — From a Certain Point of View: The Empire Strikes Back (and audiobook) (First appearance) (In flashback(s))