The present invention relates to a probe (6) intended to control by eddy currents of the surface of a circumferential chamber (2) formed in a disc (1) of the turbojet engine. The probe comprises a rod (7) fixed to a support (8), a first sensor multielement (9) integral with the movements of the rod (7) and intended to be introduced into said circumferential recess (2) in order to produce the control, and a second sensor multielement (9). The two sensors multi-element (9) are arranged back - to - back, and the rod (7) of the probe (6) is mounted to pivot about its axis for the introduction of the two sensors multi-element (9) in said cavity (2).
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