Neptune's Apex System is the best-value aquarium controller on the market today. Dollar for dollar you will not find a higher-quality controller that gives you more features, is easier to use, or has a larger and more active user base than the Apex.
Tracks your manual test results, maintenance, livestock purchases, and tank observations and helps you correlate issues in your aquarium to the things that are happening inside.
The Apex Base Unit is equipped with the following monitoring ports:
The ApexEL System includes probes for Temperature and pH. The pH probe is double-junction as well so it holds calibration longer and has a longer lifespan than single-junction probes.