FIELD: measurement equipment.
SUBSTANCE: invention relates to a sensor device with a sensor and a device for signal processing. A sensor device (1'; 1") comprises a sensor (10; 10') and a device (11'; 11") for signal processing of a sensor signal (US; IS), besides, the sensor generates a sensor signal depending on the value of the magnetic field, and the device comprises the first block (110') of comparison, besides, the block of comparison compares the sensor signal with at least one threshold value (S1, S2), and depending on it generates a signal (U_OUT) of a pulse sensor with the first or second value, the device (11'; 11"), moreover, for recognition of a manipulation attempt comprises the second block (120) of comparison, which compares the sensor signal with the specified working range (AB) and initiates the manipulation signal (MS), if the value of the signal (US; IS) is outside the working range (AB).
EFFECT: reliable recognition of manipulation with a magnet.
8 cl, 11 dwg
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