Disclosed is a non-contact magnetoresistive sensor, especially an angular sensor, which sends an output signal dependent on the angular position which is to be detected and has a certain dependence on temperature. Dependence on temperature is however minimal for certain angles. Initially, the angular sensor output signal is detected on the angular range with at least two different temperatures, and one of the angles, where the deviation between the signals is low, is selected as a zero point for the subsequent measurements.