Neptune Systems – A3 Apex Controller System
Overview
The A3 Apex System from Neptune Systems delivers intelligent control, real-time monitoring, and expansion capabilities tailored for everyday hobbyists. With built-in WiFi, multiple sensor inputs, and the trusted Energy Bar 832, the A3 makes it easy to automate and protect your aquarium with precision.
Key Features
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A3 Apex Base Unit
- Monitor: temperature, pH, water level, & surface leaks
- Ports: 3x FMM, 6x digital input, 2x Aquabus, 1x temperature, 1x pH/ORP*
- WiFi & Ethernet connectivity
- Built-in audible alarm
- Expandable with additional Neptune modules
- *ORP probe sold separately
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Energy Bar 832
- 8x 120V AC outlets (individually monitored)
- 3x 1LINK ports for WAV, DOS, etc.
- 2x 24V DC ports for accessories (solenoids, fans, small pumps)
- 3x Aquabus ports
- Only ETL/UL-certified aquarium power bar on the market
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Included Sensors
- Lab-grade temperature & pH probes
- MOS Magnetic Optical Sensor for water level detection
- LD-2 Surface Leak Detection Sensor
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Apex Fusion Access
- Monitor & control remotely via smartphone, tablet, or desktop
- Customize dashboards, set alarms, track historical data
- No app installations or updates—web-based interface
Hardware Specs
- A3 Base Unit Dimensions: 4.75" L x 5.25" H x 3.25" W
- Energy Bar 832 Dimensions: 10" L x 6.5" H x 2.25" W
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Testing & Monitoring Range:
- pH, Temperature, Water Level, Leaks
- Compatible with optional salinity, ORP, dissolved O₂ modules
What's in the Box
- A3 Apex Base Unit
- EB832 Energy Bar
- Temperature Probe
- pH Probe
- MOS Magnetic Optical Sensor
- LD-2 Leak Detection Sensor
- 6' AquaBus Cable
- Calibration Solutions (pH 7 & 10)
- Mounting Screws
- Setup Guide
Note: Display module, phone, and tablet not included.
Expandable & Backward Compatible
Supports all existing Apex modules & accessories. Add salinity, ORP, dissolved O₂ monitoring, or expand control with more energy bars or FMM sensors—fully scalable to fit your system.
Why Choose the A3 Apex System?
- Reliable protection with high-quality sensors
- Real-time alerts to your mobile device
- Automate lighting, heating, flow, dosing, & more
- Built to grow with your reef system
- Trusted brand, designed & assembled in the USA
We totally understand that plans change! You can modify or cancel your order as long as it hasn’t been shipped yet. Just call or email us right away - our team will confirm if we can catch it before it leaves our facility.
If your order is already in transit, you’ll need to request a return once it arrives. Keep in mind that some items, like aquariums and livestock, can’t be returned.
For full terms, please refer to our Refund & Return Policy.
Placing an order is simple - just add your item to the cart & complete the checkout process online. Once your order is confirmed, we'll reach out to you directly to schedule a local pick-up appointment at our facility.
* All local pick-ups are by appointment only *
Order processing typically takes 1-2 business days for products that are in stock or readily available through our network of distributors. Some products, however, are fulfilled on demand directly from our distributors, which can slightly extend processing and delivery times depending on availability and location.
Rest assured - we always work to get your order shipped as quickly as possible.
If you’d like to confirm availability or request an ETA before placing your order, you’re always welcome to call or email us.