Neptune PM3 Dissolved Oxygen & Temperature Monitoring Module

Essential Oxygen Monitoring for Healthy Marine Aquariums

Marine aquarists often underestimate the importance of dissolved oxygen in their aquariums, unaware of its vital role in sustaining aquatic life. Fish, invertebrates, corals, and beneficial bacteria all depend on oxygen for metabolism and overall health. Maintaining stable and adequate oxygen levels is essential for ensuring a thriving, balanced marine environment.

Key Features

• Monitor/Control Dissolved Oxygen and Temperature

• 6 Digital Inputs for float switches, leak detectors, pressure sensors, and more

• Full Datalogging Support via your Apex Base Module

• Plug and Play — automatically recognized when connected

• Two AquaBus Connectors for easy and flexible expansion

• Galvanic Isolation for precise, reliable probe readings

• LED Status Indicator for quick system checks

• Compatible with All Apex Systems

• Includes 3′ AquaBus Cable