The Neptune Systems A3 Apex Jr is the most affordable entry into the Apex ecosystem — monitoring temperature, pH, water level and leaks right out of the box, with built-in WiFi and Apex Fusion cloud access. Fully expandable: add an EB832 Power Bar for equipment control, or a PM2 module for salinity. A monitoring-first solution that grows into a full controller when you’re ready.
Water Parameter Controllers
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$740,00 Buy nowThe GHL ProfiLux 4e Starter Set 6E is the accessible entry point into Europe’s most respected aquarium controller platform — delivering lab-grade temperature and pH/ORP monitoring, 1-10V device control, level sensor support and 6 controllable outlets straight out of the box. Runs on ProfiLuxOS, GHL’s own dedicated aquarium operating system, with WiFi, built-in webserver and myGHL cloud access. Expandable with the full GHL ecosystem including KH Director and Doser 2.1.
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$540,00 Buy nowThe CoralVue HYDROS Control X4 Starter Pack is a complete, ready-to-run aquarium controller kit engineered and assembled in the USA. Monitor temperature, pH, ORP and water level right out of the box — then expand through the modular HYDROS ecosystem as your system grows. IP65-rated enclosure, dual-core processor, WiFi + cloud control, and aircraft-grade connectors. Ideal for both beginners and experienced reefers.
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$560,00 Buy nowThe Neptune Systems Apex EL is the accessible entry point into the Apex ecosystem — bringing built-in WiFi, temperature and pH monitoring, and full equipment control via the free Apex Fusion cloud platform. The included EnergyBar 832 provides 8 individually monitored AC outlets plus 1LINK ports for direct DOS and WAV pump integration. Expandable with the full range of Neptune Systems modules.