The present disclosure relates to a monitoring system for an electrochemical sensor, comprising: a first measuring point having a first measuring medium, a first electrochemical sensor that is in contact with the first measuring medium and is suitable for generating first sensor data, an electronic unit which is connected to the first electrochemical sensor and has a data memory, the electronic unit being suitable for storing the first sensor data generated by the first electrochemical sensor in the data memory, a computing unit adapted to be connected to the electronic unit for reading out the first sensor data in the data memory, the computing unit being connected to a database and the database having second sensor data of second electrochemical sensors, the second electrochemical sensors being structurally identical to the first electrochemical sensor.
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