Upgrading to the Ultima Pro greatly increases the functionality of the Aquarius Controller.

Should you wish to monitor or control more than just Chlorine production and pH control then you will need to upgrade to the Aquarius Ultima Pro controller.

We need to know what signals you want the controller to receive and what you want to do with them. For example, you may wish to receive a signal to tell the controller the water level has dropped to below your designated minimum at which point you want the controller to either open an actuated valve or a solenoid.