FIG. 1 is a perspective view of a body fat measuring device showing my new design;

FIG. 2 is a right side view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a left side view thereof;

FIG. 7 is a rear view thereof; and,

FIG. 8 is an in use perspective view thereof with cover opened, the broken line showing of environment being for illustrative purposes only and forming no part of the claimed design.