FIG. 1 is a perspective view, showing the top, left side and front side, of a sensor of the present invention, with no claim made to the portions illustrated in phantom;

FIG. 2 is a top view of the sensor of FIG. 1; the bottom view of the sensor being the same as the top view;

FIG. 3 is a front side view of the sensor of FIG. 1; the back side view of the sensor being the same as the front side view;

FIG. 4 is a left side view of the sensor of FIG. 1; the right side view being a mirror image of the left side view;

FIG. 5 is a perspective side view showing the top, left side and front side, of a sensor of the present invention, with no claim made to the portions illustrated in phantom;

FIG. 6 is a top view of the sensor of FIG. 5;

FIG. 7 is a front side view of the sensor of FIG. 5; the back side view of the sensor being a mirror image of the front side view;

FIG. 8 is left side view of the sensor of FIG. 5; the right side view being a mirror image of the left side view; and,

FIG. 9 is a bottom view of the sensor of FIG. 5.