A probe device (100 100a 100b 100c) for use in the human and/or animal body comprises a housing (110), at least one magnetic element (120) which is rotatably arranged within said housing (110), an induction coil (130) that is magnetically coupled with said magnetic element (120), and a control unit (140) configured to process an input signal (s1) characterizing a voltage induced in said induction coil (130).
