FIG. 1 is a top perspective view of the apparatus for measuring electrical parameters showing my new design; FIG. 2 is a front side elevation view thereof; FIG. 3 is a rear side elevation view thereof; FIG. 4 is a left side elevation view thereof; FIG. 5 is a right side elevation view thereof; FIG. 6 is a top plan view thereof; and, FIG. 7 is a bottom plan view thereof.