A dome camera is a small video surveillance camera that is in wide use in many places of business, homes, and other places such as retail stores.
These cameras are characterized by their small size and dome shape. They are usually ceiling mounted; many are mounted flush to the ceiling, others may be attached to poles that extend down from the ceiling; these are known as pendulum mounted domes. Even though they are mounted on ceilings most of the time, they can actually be installed virtually anywhere, and quite a few are wall mounted.
Dome Camera
CCTV - Analogue HD (AHD)