FIG. 1 is a perspective view of the invention;
FIG. 2 is a front elevation view of the invention;
FIG. 3 is a back elevation view of the invention;
FIG. 4 is a left side elevation view of the invention;
FIG. 5 is a right side elevation view of the invention;
FIG. 6 is a top plan view of the invention; and,
FIG. 7 is a bottom plan view of the invention.
The broken lines throughout the drawing figures are included for the purpose of illustrating portions of the case for a control unit that form no part of the claimed design.