Vanguard probot

The Vanguard Probe Droid (also known as the Vanguard Probot) was designed and manafactured by Arakyd Industriesduring the final decades of the Old Republic to assist deep-space scouts and explorers in mapping out new hyperspace travel routes. The use of Vanguard droids ensured that the organic scouting crew did not have to perform jumps into unknown territory.

=Sources=
 * The New Essential Guide to Droids