The ornamental design for a physiologicalmonitor, as shown and described.
FIG. 1 is a front- perspective view of a physiological monitor showing our new design;
FIG. 2 is a left view thereof;
FIG. 3 is a right view thereof;
FIG. 4 is a front view thereof;
FIG. 5 is a rear view thereof;
FIG. 6 is a bottom view thereof; and,
FIG. 7 is a top view thereof.
The broken lines depict portions of the physiological monitor that form no part of the claimed design; the broken lines form no part of the claimed design.