Keep your aquarium water levels stable with the HYDROS Triple Optical ATO Kit. This all-in-one solution converts your HYDROS controller into a reliable Auto Top-Off system using advanced triple optical sensors for precise water level monitoring and added safety. Triple optical water level sensor for improved safety Prevents overfilling and maintains stable salinity Includes micro pump, tubing, siphon break, and mount Powered and controlled directly by HYDROS Control Drive Port Ideal for nano, AIO, and small reef aquariums More Information Brand HYDROS Product Type Auto Top-Off (ATO) Kit Compatibility Requires HYDROS Control Drive Port Suitable Systems Saltwater and Freshwater Item # HDRS-ATO-300 Condition New MSRP $92.39 Availability In Stock Made In China FAQ Does this include the pump? Yes, the kit includes a DC micro pump, tubing, and mounting accessories. What does triple optical mean? It uses three sensors for redundancy and precision to prevent overflow. Do I need a HYDROS Control? Yes, it connects directly to a HYDROS Control Drive Port. Is it suitable for nano aquariums? Yes, it’s perfect for small reef and AIO tanks. Does it require extra power? No, it’s powered directly from the HYDROS controller.
