Description Adaptive Reef is pleased to bring a full line of products designed to work with and enhance user experiences with aquarium controllers such as Neptune. From simple 0-10v switches, Float valves, warning lights, audible alarms and so much more.  All built into a standardized mounting solution.    Adaptive Reef Apex 24v Audible and Visual Alarm will quickly bring attention to an alarm / warning on your Neptune Apex controller.   The Dual 24v Apex Red & Green Status Indicator requires two 24v ports, that are available on the 1link module and / or EB832. Related