The invention relates to a device for capacitance determination and/or monitoring of a medium level (1) in a container (2) by means of at least one level probe (5) and at least one electronic field unit (10) which is connected to the level probe (5) and generates a voltage control signal (sig1) for controlling said level probe (5) and for receiving and analysing measuring circuit (I2) thereof. Said invention is characterised in that the electronic field unit (10) comprises at least one microprocessor (15) which generates at least the a voltage control signal (sig1) and/or analyses at least the measuring circuit (I2) and/or a measured quantity proportional thereto.
