FIG. 1 is a perspective view of a contact sensor showing our new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is an end view thereof, the opposite end being a mirror image of the end shown;
FIG. 4 is a top view thereof; and,
FIG. 5 is a bottom view thereof.
The broken line showing of rectangular elements as seen in FIGS. 1 & 3 are included for the purpose of illustrating portions of the “article” and forms no part of the claimed design.