Pentair EasyTouch® 8 520540 Control System without Built-In IntelliChlor Transformer For ScreenLogic 2® Interface Software to Allow Control From an Apple® iPad®/iPhone® - Eliminates trips to your pool equipment pad, memorizing operating sequences, opening and closing valves and resetting time clocks and thermostats. With push-button operation and clear, intuitive instructions and displays, your EasyTouch system includes all circuitry and fully programmable controls in a single Load Center.