


Every HYDROS product is a smart device with its own CPU and scheduling capabilities. Use any HYDROS device by itself or connect multiple devices as part of a larger automated aquarium system with NO single point of communication failure. Versatile and Expandable without Extra Modules All HYDROS products are engineered, assembled, and supported in the USA.

The Control 4 operates on a HYDROS Safety Net and is rated IP-65 to keep your equipment and aquatic life alive and thriving. It can be used as a standalone controller for saltwater aquariums, freshwater tanks, pond applications, or it can be added to other HYDROS Controls to build a more extensive system.

Just one Control 4 can monitor temperature, pH, ORP, and water level, to name a few, and control pumps, timers, level sensors, and much more thanks to its technologically advanced design. Set up is quick and easy, making this ideal for both beginner and advanced hobbyists. No additional power source is needed to run the solenoid.HYDROS Control 4 is a powerful and robust aquarium controller capable of performing all essential functions needed to maintain a healthy aquarium without the need for extra expensive modules. The product development team at CoralVue engineered the solenoid so it connects with a Drive Port on the controller using an aviation-style plug for safer operation. CoralVue has thoroughly tested the CO2 Solenoid Valve to ensure seamless compatibility with the HYDROS platform. Creators of the Smart ATO Micro, AutoAqua is one of the most well-known and trusted makers of aquarium automation systems in the hobby today. The HYDROS DC CO2 Solenoid Valve is an Official HYDROS Accessory manufactured by AutoAqua in Taiwan. You can configure your controller to automatically turn the solenoid valve on at high pH or close the solenoid valve at low pH to effectively dissolve your calcium reactor media and replenish calcium and other elements in your aquarium water. You'll be able to control the on/off state of the CO2 solenoid attached to the regulator with the HYDROS app. For example, in a reef aquarium, you can use either controller along with a pH probe to measure the pH in a calcium reactor. You can use the HYDROS Control 2 and Control 4 to monitor and control pH. There is no separate power supply required for a clean and simple installation. The HYDROS DC CO2 Solenoid Valve is electronically controlled and plugs into a Drive Port on the Control 2 and Control 4 where it can be monitored and controlled via the HYDROS app. It’s a useful multi-purpose accessory you can use anywhere you need on/off oxygen or carbon dioxide. The HYDROS DC CO2 Solenoid Valve is the ideal solution for controlling the CO2 flow on a calcium reactor or regulating CO2 injection into a freshwater planted tank.
