Neptune Systems A3 Apex System

Unrivalled Control and Monitoring

Headlined by the A3 Apex base unit, this system delivers unparalleled monitoring capabilities — including temperature, pH, water level, and surface leak detection.

The Apex Fusion App

Apex Fusion is a free, cloud-based service that lets you connect to your Apex from anywhere in the world. This user-friendly platform makes it easy to monitor vital tank parameters, with features like:

• Drag-and-drop dashboard customisation

• Easy task-based equipment setup

• Real-time alerts when things need attention

Maintaining optimal conditions has never been easier — or more reliable.

Add Safety and Reliability to Your Aquarium

Every piece of equipment in this system is designed with peace of mind in mind. From leak detection to smart power management, it’s built to prevent disaster before it strikes — keeping your livestock and hardware protected.

Future-Proof Expandability

The Apex Controller System is more than a purchase — it’s an investment in long-term tank success. Backward-compatible and endlessly expandable, you can customise your setup as your reef grows.

Want salinity monitoring? Add a PM2 module and Conductivity Probe.
Want to automate testing of calcium, alkalinity, and magnesium? Add the Trident system.

With dozens of add-on modules available, you can build an Apex system tailored to your exact needs.

What’s Included with the A3 Apex?

A3 Base Unit
The core of the system. Features:

• 3x FMM ports (for fluid monitoring sensors)

• 2x Aquabus ports

• Dedicated ports for pH and temperature probes
  Built for versatility and expansion.

Temperature Probe
Instant alerts if water temp drifts outside the safe range. Essential for catching heater malfunctions before they become disasters.

pH Probe
Track pH for improved stability — especially if dosing two-part or kalkwasser. Quickly catch dosing issues like stuck pumps or overdose risks.

Magnetic Optical Sensor (MOS)
Low-profile sensor for sump or container level detection. Mounts to nearly any material up to 6mm thick.

LD-2 Leak Detection Sensor
Place this sensor inside your aquarium cabinet or under pipework. If water makes contact, you’ll get an immediate alert so you can act fast.

Specifications

A3 Apex Base Unit Dimensions:
12 cm (L) x 13.3 cm (H) x 8.25 cm (W)

Connection Type: Wi-Fi or Ethernet

A3 Apex Bundle Includes:

• A3 Apex Base Unit

• Temperature Probe

• pH Probe

• MOS Magnetic Optical Sensor

• LD-2 Leak Detection Sensor

• 1x 1.8m Aquabus Cable

• Calibration Solutions (pH 7.0 & 10.0)

• Mounting Screws

• Quick Start Guide

  🇦🇺 Distributed locally in Australia – Ships with AU power plug and full local support.