A measuring device serves for the measurement and display of at least one measurement signal. It contains a measuring unit for the measurement of the at least one measurement signal and a display unit. In this context, the display unit comprises a processing unit and a touch-sensitive screen. The processing unit is embodied in order to display the at least one measured measurement signal by means of the touch-sensitive screen and to register and process touches on the touch-sensitive screen. The processing unit is further embodied in order, in the case of a touch of the touch-sensitive screen in a first position, to display the displayed at least one measured measurement signal in at least one first region around the first position magnified with a first magnification.