Probe Droid
any of the various droids used to search out remote data. They are often dispensed from large starships in small propulsion capsules. The droid emerges from the capsule on planetfall, and begins following its programmed mission. The droids are equipped with motion detectors, video and audio recording devices, and holographic transmittors. The first probe droids were used to search out metals and fuel sources on remote planets. Later, exploratory probe droids were sent out to look for inhabited planets. After Palpatine assumed control of the galaxy, most exploratory probe droids were reprogrammed to hunt down the bases used by the Alliance, pursue fleeing targets, act as picket line sensors, and to perform spy missions. For these reasons, they were outfitted with protective armaments and self-destruct mechanisms.