Voltage tester pen having a display screen with graphical user

FIG. 1 is a first image for a voltage tester pen having a display screen with graphical user, showing my new design;

FIG. 2 is a second image thereof;

FIG. 3 is a third image thereof;

FIG. 4 is a fourth image thereof;

FIG. 5 is a fifth image thereof;

FIG. 6 is a sixth image thereof;

FIG. 7 is a seventh image thereof;

FIG. 8 is an eighth image thereof;

FIG. 9 is a ninth image thereof;

FIG. 10 is a tenth image thereof;

FIG. 11 is an eleventh image thereof;

FIG. 12 is a twelfth image thereof;

FIG. 13 is a thirteenth image thereof; and,

FIG. 14 is a fourteenth image thereof.

The subject matter in this patent includes a process or period in which an image changes into another image. This process or period forms no part of the claimed design. The solid peripheral line rectangle depicts a display screen. The broken lines depict portions of the voltage tester pen and form no part of the claimed design.