Neptune Systems Lab Grade Conductivity/ Salinity Probe
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Neptune Systems Salinity Probe for Accurate Aquarium Salinity Monitoring
The Neptune Systems Salinity Probe delivers reliable, real-time tracking of salt levels in reef aquariums, ensuring stability for corals and fish. Built by Neptune Systems and designed to work seamlessly within Automate & Monitor systems, this lab-grade sensor protects against fluctuations that often go unnoticed until they cause stress.
Why a Neptune Systems Aquarium Salinity Probe Matters
An Aquarium Salinity Probe eliminates the guesswork of hydrometers and manual checks. Continuous monitoring means hobbyists can spot evaporation changes, mixing inconsistencies, or dosing issues before they turn into larger problems. By integrating this probe, your Apex system can take action automatically, from sending alerts to triggering connected devices.
Expanding with Neptune Systems Probes with the Salinity Probe
As part of the Probes category, this sensor connects directly to an Apex controller or through a PM2 Salinity Module. The PM2 also includes a temperature probe port and I/O expansion, making it an excellent upgrade for aquarists without a dedicated salinity port.
Key Features of the Neptune Systems Salinity Probe
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Provides accurate conductivity-based salinity measurements
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Tracks salinity in real time to detect rapid changes
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Compatible with Apex systems using the PM2 module
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Requires calibration solutions (sold separately) for accuracy
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Lab-grade design for long-term reliability in marine environments
Frequently Asked Questions About the Neptune Salinity Probe
Does this Salinity Probe work with every Apex system?
It works with any Apex that has a salinity port or when paired with the PM2 module.
Why is continuous aquarium salinity monitoring important?
Stable salinity prevents stress on corals and fish, while also reducing long-term issues caused by unnoticed evaporation or overdosing.
Do I need to recalibrate the probe often?
Yes, calibration every few months ensures accurate readings, especially in high-demand reef environments.
What else do I need besides the probe?
For Apex controllers without a salinity port, the PM2 module is required. Calibration solutions are also necessary.
Is the probe only for saltwater systems?
The probe is primarily for saltwater, but freshwater aquarists can use it with the appropriate calibration fluid.
Ensure you are using the right Solution for the Salinity Probe
- In saltwater usage: 53000 uS Conductivity Solution
- In Freshwater systems: 447 uS Conductivity Solution

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