Instrument cover and instrument

The embodiment of the utility model relates to the technical field of instruments, in particular to an instrument cover and an instrument, the instrument cover comprises a fixed cover, an adapter and a turning cover, the fixed cover is used for covering the instrument, and an observation opening is formed in the fixed cover; the fixed cover is provided with a decorative side wall which is perpendicular to the center line of the observation opening and is far away from the instrument, and a fixed side wall adjacent to the decorative side wall. The adapter is detachably arranged on the fixed side wall; a hinge groove is formed in the adapter, a fixing plate is arranged at one end of the turning cover, a hinge shaft is arranged on the fixing plate, and the hinge shaft is rotatably arranged in the hinge groove, so that the turning cover rotates relative to the fixing cover and covers the decorative side wall. Therefore, the rotating piece and the connecting position of the rotating piece and the turning cover are