Controller for Electronic Grade Rod

FIG. 1 is a front view of a controller for electronic grade rod, shown in a first state for use;

FIG. 2 is another front view thereof, shown in a second state for use; and,

FIG. 3 is another front view thereof, shown in a third state for use.

The appearance of the graphical user interface of the controller transitions between the images. The process or period in which one image transitions to another image forms no part of the claimed design. The broken-lines in the figures depict portions of the controller for an electronic grade rod that form no part of the claimed design.