AutoPilot Pool Chemistry Controller for the Total Control System 75001 The AutoPilot's Total Control System is an accurate and reliable way to create and maintain clean and balanced water in your pool or spa. The Pool Chemistry controller for the Total Control System works with the entire Total Control System to chlorinate your pool and to monitor your pH levels. The unit includes both pH and ORP sensors. The entire Total Control System includes: the 75003 Total Control Power Supply, the 75001 Total Control Chemistry Controller, a Salt Cell & Manifold Kit, and an Acid Feeder Tank with a Pump. Features: pH and OPR sensors Acid tank not included Easy installation and use AutoPilot 75001