The Tunze RO Water Controller 8555 is an advanced automatic water level controller designed to maintain precise water levels in your saltwater aquarium system. Primarily used with the collection container of a Tunze RO station, it ensures a consistent supply of pure RO/DI water. This versatile unit can also be integrated with other water tanks or connected to an existing automatic refill system, providing reliability and convenience for reef hobbyists. It comes complete with a controller unit, two precise sensors, a water valve, and a 12 V power supply unit for straightforward setup.

This controller offers exceptional flexibility, allowing the included water valve to be swapped out for a switched socket outlet 3150.110 for mains operation, depending on your specific needs. Its innovative design also permits the reversal of sensor positions, enabling the controller, in conjunction with a switched socket outlet 3150.110 and a pump, to automate the emptying of a water tank. This functionality extends its use beyond simple refilling, making it suitable for automatic filling, emptying, or even the construction of a comprehensive automated water changing system when combined with a second unit.

The Tunze RO Water Controller 8555 is ideal for any saltwater aquarium enthusiast seeking to automate their water top-off or water change routine, ensuring unparalleled stability and reducing manual labor. It's particularly beneficial for those with RO/DI systems, sumps, or dedicated mixing stations, providing peace of mind through consistent water parameters. By eliminating daily manual intervention, this controller helps maintain a stable reef environment, fostering healthier corals and fish while freeing up valuable time for other aspects of reef keeping.