IntelliPro Variable Speed pumps combine variable drive technology, onboard digital intelligence and permanent magnet motors (used in hybrid cars) to reduce pump-related energy costs by up to 90%. The new IntelliPro VS+SVRS model is the first swimming pool pump to feature a built-in Safety Vacuum Release System that detects drain blockage and automatically shuts the pump off. Ability to program exact pump speeds for specific operations - filtering, heating, cleaning, spa jets, water features and more. Built-in diagnostics protect the IntelliPro pump from the most common causes of premature failure - overheating, freezing and voltage irregularities (SVRS model includes priming protection as well). Safety lock-out feature (password protected) on SVRS model prevents pump speed settings from being changed by unauthorized personnel. Ability to set minimum and maximum speeds on SVRS model so IntelliPro will only operate within the ranges set to help assure safe operation and long life. Compatible with IntelliTouch, EasyTouch and SunTouch pool control systems.