The Neptune Systems Apex Salinity (Conductivity) Module, PM2, is an essential accessory for Apex and Apex Lite AquaController Systems, designed to help maintain consistent salinity in your reef aquarium. This module constantly monitors the conductivity, and thus salinity, of your tank water, alerting you the moment parameters trend outside of a safe range. Maintaining stable salinity is paramount for the health and well-being of all organisms within a saltwater environment.

Key features of this module include its ability to monitor conductivity and control connected outlets based on these readings, providing an automated response to parameter fluctuations. It boasts galvanic isolation for accurate and reliable probe readings and offers automatic temperature compensation when coupled with a separate temperature probe, which is crucial as salinity varies with water temperature. The module also provides an extra temperature port for precise real-time salinity calculations and six digital I/O switch inputs, allowing for integration with various accessories like ATO systems, feed buttons, or leak alarms.

This product is best suited for saltwater aquarists who already utilize or are planning to invest in a Neptune Apex or Apex Lite system and desire precise, real-time, and automated monitoring of their aquarium's salinity. It is ideal for busy hobbyists who need reliable alerts to prevent critical parameter swings and offers expanded control capabilities for a more integrated and secure reef management system. Note that the salinity conductivity probe and temperature probe are not included and must be purchased separately.