FIG. 1 is an upper perspective view of the basal thermometer according to the present design;
FIG. 2 is a front upper perspective view of the basal thermometer according to the present design;
FIG. 3 is a rear upper perspective view of the basal thermometer according to the present design;
FIG. 4 is front view of the basal thermometer according to the present design;
FIG. 5 is back view of the basal thermometer according to the present design;
FIG. 6 is right side of the basal thermometer according to the present design;
FIG. 7 is left side of the basal thermometer according to the present design;
FIG. 8 is top view of the basal thermometer according to the present design; and,
FIG. 9 is bottom view of the basal thermometer according to the present design.