US D316825 S
FIG. 1 is a front elevational view of a portable automotive monitoring instrument showing my new design;
FIG. 2 is a right side elevational view;
FIG. 3 is a top plan view;
FIG. 4 is a bottom plan view;
FIG. 5 is a rear elevational view; and
FIG. 6 is a left side elevational view thereof.