Thermostat

FIG. 1 is a front, right side perspective view of a thermostat, showing our new design;

FIG. 2 is a second perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof;

FIG. 9 is a perspective view of another state of the thermostat thereof;

The broken lines shown in the drawings depict portions of the thermostat that form no part of the claimed design.