The highlight of this fully digital controller is an independent dosing control system (IDC) programmed to administer optimum supplement levels without disruption in operation. This unit also features ground loop preventers, a logic load shifter and auto calibration. Get text and e-mail notifications of level changes. Wi-Fi access allows for remote operational control from anywhere in the world. Data logging has an accuracy level of �0.01 pH. This unit includes IDC software, 12V DC power Adapter, double junction pH probe, pH 7.01 calibration solution and temp electrode.