▎ 摘　　要

NOVELTY - The sensor device (10) comprises a sensor (110) having a measuring probe. The measuring probe has a self-healing protective device (150) is set up to partially close an abrasion on the surface of the self-healing protective device. The surface of the self-healing protective device has a self-healing surface is monolithic. The self-healing protective device has a coating on the surface. The coating of the self-healing surface is multilayered. The self-healing surface or the coating of the self-healing surface consists of a plastic formed by a hybrid material. Multiple of graphene oxide particles is integrated in the hybrid material. USE - Sensor device for detecting a fill level, a limit level, a density or a pressure of a medium in a process container or in a pipe system of a self-healing protective device (Claimed) for a measuring probe. ADVANTAGE - The measuring probe is protected from damage and incorrect measurements with the measuring probe can be avoided as far as possible. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of a sensor device. Sensor device (10) Pipe system (22) Medium (25) Sensor (110) Self-healing protective device (150)