A techno-arcane Imperial device of great sophistication, a Sky Eye is a small hovering sphere slightly less than two fingers wide with an elegant docking station containing a variety of holo-display modules.
The sphere is able to scout out a chosen area within fifteen kilometres of the docking station, a process that can take anywhere from a few solar minutes to several hours depending on the distances involved and the level of stealth asked of the sphere component.
Upon the Eye's return, the docking station can produce perfect three-dimensional holo-maps of the scouted area that can be downloaded to standard Data-Slates.
Rumour has it the Inquisition has access to stealthed Sky Eyes that incorporate camouflaging materials, which they use to scout out the interiors of rooms and buildings before entering.
- Dark Heresy: Inquisitor's Handbook (RPG), pg. 153