Sensor

FIG. 1 is a top perspective view of a sensor according to the claimed design. FIG. 2 is a bottom perspective view of the sensor. FIG. 3 is a top view of the sensor. FIG. 4 is a bottom view of the sensor. FIG. 5 is a left side view of the sensor. FIG. 6 is a right side view of the sensor. FIG. 7 is an enlarged rear view of the sensor. FIG. 8 is an enlarged front view of the sensor. FIG. 9 is an enlarged view of area 9 in FIG. 6 . FIG. 10 is an enlarged view of area 10 in FIG. 3 . FIG. 11 is an enlarged view of area 11 in FIG. 3 ; and, FIG. 12 is an enlarged view of area 11 in FIG. 3 . The broken lines in the drawings illustrate portions of the sensor that form no part of the claimed design. The dash-dot-dot broken lines in FIGS. 3 , 6 , and 9 - 12 indicating the boundaries of the enlarged areas form no part of the claimed design. The stipple shading, hatch shading, and cross-hatch shading in FIGS. 1 , 3 , and 10 - 12 represent contrast in appearance, although no particular color is claimed. The bold dashed lines illustrating the crosshair features in FIGS. 1 , 3 , and 10 - 12 form part of the claim.