A security camera includes a camera unit, and a top plate rotatably
supporting the camera unit. A movable circuit board is disposed above the
top plate. A fixed circuit board is rotatably disposed to be spaced from
the movable circuit board by a predetermined gap. An electric wire
electrically connects the movable circuit board and the fixed circuit
board. A slip ring substantially prevents the connection electric wire
from being twisted by rotational movement of the movable circuit board. A
connection unit supports the slip ring and rotatably supports the top
plate.