Mark IV sentry droid

The Mark IV Sentry Droid was a small, multipurpose sensor droid used by the Empire.

As fitting their purpose, Mark IV droids were equipped with an extensive sensor complement in place of traditional weaponry. The droid featured electromagnetic, infrared, and visible-light sensors, in addition to three hours worth of holorecording memory. They were capable of flying up to 15 meters in the air via built-in repulsorlifts.

Because of their powerful sensory equipment, Mark IV droids were used for a variety of tasks: battlefield reconnaisance, surveying, sentry and patrol duties; the droids were even capable of long-range surveillance due to the inclusion of a holorecording rig. Although equipped with basic personality programming and self-preservation instincts, Mark IV droids were compelled to obey orders given to them, leading cautious commanders to scout dangerous terrain ahead with the essentially expendable droids.

Mark IV droids were used on the planet of Tatooine, where they searched the crowded streets of Mos Eisley in cooperation with Stormtroopers.

Appearances

 * Star Wars Episode IV: A New Hope