Fluid level sensors are devices used to monitor and control the level of irrigation fluid within the joint during the surgical procedure. Arthroscopic surgery involves the introduction of sterile saline solution (irrigation fluid) into the joint to distend it, provide a clear view of the joint's interior, and facilitate the removal of debris. Monitoring and maintaining the fluid level is crucial for the safety and effectiveness of the procedure. Arthroscopy fluid level sensors are specifically designed for use in arthroscopic equipment and procedures.