Hydros Control X4 Aquarium Controller PRO Pack

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The Ultimate Aquarium Monitoring and Control System

Master your aquarium automation with the HYDROS Control X4 Pro Pack featuring TWO control devices for the ultimate failsafe. The Control X4 allows you to connect up to four sensors and two probes, giving you the ability to monitor temperature, water level, pH, ORP, and more. The Control X4 also includes two Drive Ports for powering pumps and solenoids, and two Command Bus ports for connecting to and communicating with other HYDROS devices. The second included controller, the Control XP8, provides 8 120V AC outlets for powering and monitoring your aquarium's critical life support equipment. Both devices can send alerts and notifications and connect up to 8 WiFi devices for added modular control on additional equipment like lights, pumps, feeders, and more by simply adding a HYDROS WiFi Power Strip or HYDROS Smart Plug (both sold separately).




HYDROS Control X4

The HYDROS Control X4 is equipped with four Sense Ports, two Probe Ports, two Drive Ports, and two Command Bus Ports. Control X4 can send alerts and notifications through the HYDROS app and with the addition of the HYDROS WiFi Power Strip or HYDROS Smart Plug, it can also control outlets for lights, pumps, feeders, and more.  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. The Control X4 operates on a HYDROS Safety Net and it is rated IP65 to keep your equipment and aquatic life alive and thriving. 


2x Sense Ports -- A Sense Port is a generic input port that can accept data from numerous different types of sensors, including but not limited to:

  • Temperature probes
  • Optical level sensors (Single & Dual)
  • Capacitive non-contact liquid level sensors
  • Rope leak detectors
  • Point leak detectors
  • Flow rate sensors
  • Magnetic switches
  • Push-button switches


2x Probe Ports -- The Probe Ports have circuitry based on an ultra-high-quality input chip specifically designed for use with ORP and pH probes. The result is that each input provides digital galvanic isolation from the rest of the system, preventing any interference with other accessories (such as motors and pumps) connected to the system. Digital Galvanic isolation preserves the accuracy of the measurement by converting the signal to a digital domain before crossing the isolation threshold, so you can feel more secure in your readings than ever before.


2x Drive Ports -- The Drive Ports provide switched 12V DC power for running small lights, motors, pumps, fans, and other accessories. The exact current being supplied by each port is continuously monitored by the Control, so if a motor or pump quits drawing current or draws too much, you will be immediately notified. A few example of supported accessories include:

  • Auto Top Off (ATO) pumps
  • Cooling fans
  • Cabinet LED lights
  • Solenoids to control RO/DI systems


2x Command Bus -- Two Command Bus Ports are available for powering the Control and connecting to and communicating with additional HYDROS devices for additional redundancy. 


0-10V Port -- The HYDROS Control X4 has 0-10V I/O (input and output) ports that allow it to control and receive commands from other HYDROS devices and accessories from other brands. A legacy automation system can provide input via the 0-10V Ports. They can control variable speed pumps and can also be used to monitor simple switch closures, like push buttons or float switches.





The HYDROS XP8 Energy Bar is an eight outlet power bar and controller hybrid designed for controlling and monitoring aquarium heaters, return pumps, lights, protein skimmers, and more from anywhere in the world via the HYDROS Appp. In addition to the equipment plugged into its 8 outlets, the XP8 Energy Bar can also wirelessly control up to 8 WiFi devices including fish feeders, smart outlets, or additional power strips when paired with a HYDROS WiFi Power Strip or HYDROS Smart Plug (both sold separately).

The Control XP8 is not merely a "Power Bar"-- it is a fully functioning HYDROS system controller with its own "brain" capable of taking over intelligent decisions based on the status of other HYDROS Devices within the your HYDROS "collective". Its two HYDROS Command Bus ports allow for a wired connection to any other HYDROS controller, allowing you to power and consolidate control devices for the ultimate failsafe system. 

  • Control your HYDROS device(s) from anywhere in the world using the cloud-based app
  • Includes 8 outlets to control and monitor power for pumps, lights, skimmers, and more
  • Connect with a Hydros WiFi Power Strip or Hydros Smart Plug (slold separately) to control up to 8 WiFi devicess
  • 2 Command Bus ports with built-in 60W Meanwell Power Supply to connect to other HYDROS devices & add redundancy
  • Passively cooled-- no noisy fans
  • Power monitoring per outlet
  • Can run standalone or be grouped with other Hydros Control devices
  • Can be mounted in any position
  • Engineered, assembled, and supported in the USA.


The Control XP8 has a built-in 60W universal voltage Meanwell power supply with a 14amp max power capacity and is designed to pass ETL/UL certification.  Besides the clicking on and off of the controlled outlets, the XP8 is completely passively cooled and with its isolated power circuitry, the controller runs completely silent. Best of all, each of the eight outlets has individual power monitoring capabilities.




Control X4 Specifications

Dimensions - 7.8" x 3.6" x 2.5"

Availbable Ports - 

  • 2x Command Bus
  • 2x Drive Ports
  • 4x Sense Ports
  • 2x Probe Port
  • 1x IN / 1x OUT 0-10V Ports



Control XP8 Specifications

Dimensions - 9.5" x 4.75" x 3.2"

Max. Per Relay - 8A

Total Max. Amperage - 14A

Outlets - 8x 120V AC

Voltage - Universal (works with both 110 and 220V)




What's Included?

1x Control X4 Unit

1x XP8 Unit

1x Temperature Sensor

1x pH Probe w/ Calibration Solutions

1x 6ft Command Bus Cable w/ Two Terminators


More Information
UPC 850009641403
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Product Questions

Is there anyway to add a 3 and 4 probe port into this system?
Question by: Clayton C on Dec 11, 2023, 8:48 PM
Hey there,
Thank you for reaching out to us. You would need a second Control 4 if you wanted to add in a 3rd and 4th PH probe. Please let me know if you need anything further.
Answer by: Thomas Wofle (BRS Staff) on Jan 31, 2024, 12:49 PM
If I have a conductivity probe, 2 pH probes and a ORP probe is there anyway to add on to this system to allow more probes?
Question by: Clayton on Dec 7, 2023, 12:15 PM
Great question! Yes, you would just have to purchase an additional controller 4, then you could combine them to be one collective.
Answer by: Grace (BRS Staff) on Jan 25, 2024, 10:14 AM