The ornamental design of a sensor for a moisturedetection device, as shown and described.
FIG. 1 is a top plan view of a sensor for a moisture detection device in accordance with our new design;
FIG. 2 is a bottom plan view of the design of FIG. 1;
FIG. 3 is an end elevation view of the design of FIG. 1;
FIG. 4 is an opposite end elevation view of the design of FIG. 1;
FIG. 5 is a side elevation view of the design of FIG. 1;
FIG. 6 is an opposite side elevation view of the design of FIG. 1; and,
FIG. 7 is a perspective view of the design of FIG. 1.
The broken line showing of structural features is included for the purpose of illustrating non-claimed subject matter and forms no part of the claimed design.