Provides the same features as the PerfectFit2 system but produces a RIP signal (inductance) output specifically designed for PSG systems (Embla®, Grael® and Alice® 6) that contain integrated RIP circuitry in the electrode input box. No more wire woven beltsThe PerfectFit 3D Effort System provides users with two reusable sensor modules that incorporate Button-Hole connectors to where disposable effort belt material is connected. The PerfectFit 3D is a perfect semidisposable solution for PSG and HST respiratory effort applications.