Polaris R0588400 Control Unit for P955 Robotic Cleaner. The Polaris 9550 features a sophisticated 4WD Easy Lift System, Motion-Sensing handheld remote, and Vortex Vacuum technology for the best in class cleaning performance. Featuring a solid blade scrubbing brush and a smart 7-day programable timer, you can confidently set it and forget it. Spend more time relaxing and swimming, and less time cleaning with Polaris.