A capacitive proximity sensor with a sensor arrangement with - a resonant circuit which has at least one inductance (1.3; 11.5) and at least one capacitance (1.6; 11.2), the capacitance (1.6; 11.2) being formed relative to a ground potential (1.2). - at least one sensor electrode (1.4; 10.2) incorporated as a resonance capacitor in the resonant circuit, - an exciter circuit (1.1; 11.6), which is intended and suitable for exciting the resonant circuit, the resonant circuit being excited in a starting state by the exciter circuit (1.1; 11.6) with a frequency below a resonance frequency of the resonant circuit, - an output signal (1.8; 11.4) that can be tapped at the resonant circuit, - a medium (1.7) with a resistive component formed by a moist contamination or a moist fabric connectable to the ground potential (1.2) and arrangeable between the sensor electrode (1.4; 10.2) and the ground potential (1.2) leading to a detuning of the resonant circuit, whereas the possibility of a further capacitance of an object approaching the sensor electrode (1.4; 10.2) leads to a detuning of the resonant circuit with an output signal (1.8; 11.4) having an amplitude that is altered in relation to the starting state, even in the presence of the medium (1.7) having a resistive component, - an evaluation circuit (1.9) being intended and suitable for evaluating the output signal (1.8; 11.4) to determine the proximity of the further capacitance and to identify the proximity of the further capacitance on the basis of the change to the amplitude of the output signal (1.8; 11.4), characterised in that the detuning of the resonant circuit by the medium (1.7) having a resistive component leads to an output signal (1.8; 11.4) with an amplitude that remains the same in relation to the starting state, even in the presence of the medium (1.7) having a resistive component, and the exciter circuit (1.1; 11.6) is operable such that the resonant circuit is excited periodically with N exciter oscillations, N being a number smaller than 10, the evaluation circuit (1.9) being intended and suitable for evaluating, at the resonant circuit, the amplitude of the output signal (1.8; 11.4) during the and/or shortly after the N exciter oscillations. - a resonant circuit which has at least one inductance (1.3; 11.5) and at least one capacitance (1.6; 11.2), the capacitance (1.6; 11.2) being formed relative to a ground potential (1.2). - at least one sensor electrode (1.4; 10.2) incorporated as a resonance capacitor in the resonant circuit, - an exciter circuit (1.1; 11.6), which is intended and suitable for exciting the resonant circuit, the resonant circuit being excited in a starting state by the exciter circuit (1.1; 11.6) with a frequency below a resonance frequency of the resonant circuit, - an output signal (1.8; 11.4) that can be tapped at the resonant circuit, - a medium (1.7) with a resistive component formed by a moist contamination or a moist fabric connectable to the ground potential (1.2) and arrangeable between the sensor electrode (1.4; 10.2) and the ground potential (1.2) leading to a detuning of the resonant circuit, whereas the possibility of a further capacitance of an object approaching the sensor electrode (1.4; 10.2) leads to a detuning of the resonant circuit with an output signal (1.8; 11.4) having an amplitude that is altered in relation to the starting state, even in the presence of the medium (1.7) having a resistive component, - an evaluation circuit (1.9) being intended and suitable for evaluating the output signal (1.8; 11.4) to determine the proximity of the further capacitance and to identify the proximity of the further capacitance on the basis of the change to the amplitude of the output signal (1.8; 11.4), characterised in that the detuning of the resonant circuit by the medium (1.7) having a resistive component leads to an output signal (1.8; 11.4) with an amplitude that remains the same in relation to the starting state, even in the presence of the medium (1.7) having a resistive component, and the exciter circuit (1.1; 11.6) is operable such that the resonant circuit is excited periodically with N exciter oscillations, N being a number smaller than 10, the evaluation circuit (1.9) being intended and suitable for evaluating, at the resonant circuit, the amplitude of the output signal (1.8; 11.4) during the and/or shortly after the N exciter oscillations.