We claim the ornamental design for a biological component measuring device, as shown and described.
FIG. 1 is a front perspective view of a biological component measuring device, showing our new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a bottom plan view thereof;
FIG. 5 is a top plan view thereof;
FIG. 6 is a right side elevational view thereof; and,
FIG. 7 is a left side elevational view thereof.
The broken lines illustrate portions of the biological component measuring device that form no part of the claimed design; the broken lines form no part of the claimed design.