The ornamental design for a sensor for respiratormask, as shown and described.
FIG. 1 is a perspective view of a sensor for respirator mask showing the present design;
FIG. 2 is a front view of the present design;
FIG. 3 is a rear view of the present design;
FIG. 4 is a left side view of the present design;
FIG. 5 is a right side view of the present design;
FIG. 6 is a top view of the present design;
FIG. 7 is a bottom view of the present design; and,
FIG. 8 is a left side view thereof, shown in an environment of use.
The broken line showing of the respirator mask in FIG. 8 illustrates environment and forms no part of the claimed design. All other broken lines illustrate portions of the sensor for respirator mask that form no part of the claimed design.