The ornamental design for a testdevice, as shown and described.
FIG. 1 is a top right front side perspective view of a test device in accordance with my new design. The cord shown in FIG. 1 extending between the top of the test device and the phantom illustrated outlet plug may vary in length and is thus shown with a break line. These features are omitted from FIGS. 2-7 solely for purposes of clarity of presentation;
FIG. 2 is a bottom right front side perspective view of the test device shown in FIG. 1;
FIG. 3 is a front orthogonal view of the test device shown in FIG. 1;
FIG. 4 is a rear orthogonal view of the test device shown in FIG. 1;
FIG. 5 is a left side orthogonal view of the test device shown in FIG. 1, the right side being a mirror image thereof;
FIG. 6 is a top orthogonal view of the test device shown in FIG. 1; and,
FIG. 7 is a bottom orthogonal view of the test device shown in FIG. 1.
The broken lines in the drawings are for illustrative purposes only and form no part of the claimed design. The shading lines in the drawings show contour and are not intended to indicate surface orientation.