Overview

The Neptune Systems Lab Grade Dissolved Oxygen (DO) Probe is designed for use with the PM3 Module, delivering accurate, real-time monitoring of dissolved oxygen levels in your aquarium. Unlike traditional probes, this lab-grade probe features a replaceable membrane, making it a cost-effective and long-lasting investment. With proper care and routine membrane replacement, this probe can provide reliable performance for years—helping you safeguard the health of your reef tank inhabitants.

Key Features

• Lab-Grade Accuracy – Provides precise dissolved oxygen measurements when paired with the Neptune PM3 Module.

• Replaceable Membrane – Extend the probe’s lifespan by replacing the sensor membrane every 3 months.

• Long-Term Value – A durable, professional-grade probe designed to last a lifetime with proper maintenance.

• Generous Cable Length – Includes a 10 ft. cable for flexible placement in your system.

• Critical for Reef Health – Helps monitor oxygen levels to prevent fish stress or fatalities from oxygen depletion.

Dissolved Oxygen Guidelines

• Recommended Range for Reef Tanks: 4.5–7 ppm

• Stress Threshold: Below 4 ppm

• Fatal Threshold: Below 3 ppm

• Example: At 78.8°F and 35ppt salinity, maximum dissolved oxygen saturation is 6.64 ppm.

Product Specifications

• Model: Lab Grade Dissolved Oxygen Probe

• Compatibility: Neptune Systems PM3 Module

• Cable Length: 10 ft.

• Maintenance: Replace membrane every 3 months (replacement kits sold separately)

What’s Included

• (1) Neptune Systems Lab Grade Dissolved Oxygen Probe with 10 ft. cable

Note: PM3 Module required for operation (sold separately). Replacement membrane kits available.