The farm droid, officially designated the SE-2 worker droid, was a simply-constructed and loosely articulated labor droid model intended for basic tasks. It possessed a single-lens photoreceptor capable of dual-imaging. A particular SE-2 unit, known as "Essie", was employed on Galen Erso's farm. In 13 BBY, this droid notified the Erso family upon observing Director Orson Krennic's Imperial shuttle as it neared their homestead.