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.