The Site Master menu‑driven interface is easy to use and requires little training. The Site Master uses a touchscreen, keypad, Arrow keys, and rotary knob for data input. The menu and submenu keys vary depending upon the selected mode of operation.

The number keypad keys are dual purpose, depending upon the current instrument state. The dual‑purpose keys are labeled with a number on the key and the alternate function printed above the key. The numeric keys function when there is an active parameter entry dialog box open. The Esc key is used for aborting data entry and closing menus. The rotary knob, the four Arrow keys, and the keypad can also be used to change the value of most active parameters.