A signaling device which generates a selection signal via an analog selection device for choosing a signal range, and a range scale for displaying the signal range chosen by the analog selection device, wherein the range scale includes setting ranges and a transition range, where one setting range of the setting ranges is arranged in an alternating manner with the transition range along the range scale, and the analog selection device is arranged such that selection of a setting range or a transition range along the range scale is selected and the analog selection device defines an analog selection value, and the signaling device additionally detects the analog selection value aided by the selection signal and checks whether this value corresponds to a value allocated to a transition range, and if so, outputs a signal via a signaler.