I claim the ornamental design for an inflatable device pressure gauge, as shown and described.
FIG. 1 is a front perspective view of an inflatable device pressure gauge.
FIG. 2 is a top plan view of the inflatable device pressure gauge shown in FIG. 1.
FIG. 3 is a front elevational view of the inflatable device pressure gauge shown in FIG. 1. The rear elevational view of the inflatable device pressure gauge is the same as FIG. 3.
FIG. 4 is a bottom plan view of the inflatable device pressure gauge shown in FIG. 1.
FIG. 5 is a left side elevational view of the inflatable device pressure gauge shown in FIG. 1. The right side elevational view of the inflatable device pressure gauge is the same as FIG. 5; and,
FIG. 6 is a rear perspective view of the inflatable device pressure gauge shown in FIG. 1.