Abstract: A calibrator having an enhanced user interface (UI) is provided. The calibrator outputs, over an output terminal of the calibrator, an electrical signal. The calibrator presents, on a display of the calibrator, a graphical indication associated with an electrical quantity of the electrical signal. The calibrator or a controller thereof synchronizes a color of the graphical indication with a color emitted by a light indicator associated with the output terminal. The calibrator presents, together with the graphical indication, a signal property GUI element that is selectable and representative of a signal property associated with the electrical signal. In response to user selection of the signal property GUI element, the calibrator displays an editable GUI element permitting user modification of the signal property and the calibrator modifies the electrical signal according to user input.