Graphical measuring device that combines the advantages of easy readability of an analog display with the accuracy of a digital measuring instrument. It supports measurement types of analog signal 0/4 to 20 mA as well as DC current measurement via a shunt resistor. Minimum and maximum values are recorded and can be activated and reset via an external switch. The device records measurement values over a duration of 3 minutes to 72 hours. The time range and the display of the trend graph of the measurement values can be switched using an external switch. The associated USB configuration software allows the following parameters to be configured: scale range, scale labeling, display design (pointer, tachometer, bar graph, etc.), start graphic, threshold values for alarm outputs, hysteresis, and more. Through the software, measurement values in the memory can be read out and continuous data transmission can be activated. The measurement values can be graphically evaluated within the software and exported as a CSV file.