Skip to product information
1 of 3

Thunder Reef Aquatics

Neptune Systems Lab Grade Conductivity / Salinity Probe – Apex Monitor

Neptune Systems Lab Grade Conductivity / Salinity Probe – Apex Monitor

Regular price $209.99
Regular price Sale price $209.99
Sale Sold out
Shipping calculated at checkout.

🔍 Product Overview

The Neptune Systems Lab Grade Conductivity/Salinity Probe is a high-precision sensor designed for saltwater aquarium monitoring. Compatible with Neptune’s Apex controllers and PM2 salinity module, it provides real-time readings of conductivity (µS/cm or mS/cm) and salinity (ppt), with built-in alerts for out-of-range conditions.


🌟 Key Features and Benefits

  • Laboratory-grade accuracy, capable of measuring in dual ranges

  • Seamlessly reads salinity (ppt) on Apex/PM2 and conductivity on PM2 controller

  • Includes a 10 ft (≈3 m) cable with a reliable Minidin-4 connector


📦 What’s Included

  • 1 × Neptune Systems Lab Grade Conductivity/Salinity Probe (PRBCOND / 11128)

  • 10 ft cable with Minidin-4 connector


🧪 How to Use

  1. Connect the probe to your Apex controller or PM2 salinity module.

  2. Submerge the probe in your sump or display tank.

  3. Allow 24–48 hours for measurement stabilization.

  4. Maintain using recommended calibration solutions: 53 mS for saltwater 


⚙️ Why It Matters

Stable conductivity and salinity are essential for coral health, calcification, and overall livestock vitality. This lab-grade sensor delivers precise, reliable data, allowing you to set alerts and correct fluctuations before they impact your aquarium.


✅ Conclusion

Ideal for reefers seeking accurate and dependable salinity monitoring, the Neptune Lab Grade Probe integrates seamlessly into Apex/PM2 systems, offering peace of mind through real-time, actionable aquarium data.

View full details