SKU: 23893221994

Neptune A3 Apex Aquarium Controller System

Sale price$6712.65 Regular price$7458.50
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Ships within 48 hours · Estimated delivery Aug 24 - Aug 29

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Description

Neptune A3 Apex Aquarium Controller SystemNeptune A3 Apex Aquarium Controller System Neptune A3 Apex Aquarium Controller System is used for monitoring and controlling various parameters of an aquarium, including temperature, pH, water level, and leak detection, while allowing remote access and management through the Apex Fusion interface. Neptune Systems A3 Apex System The control you want, monitoring you need, and with room to grow for the everyday hobbyist A3 Apex base unit 3 FMM Ports 6

Neptune A3 Apex Aquarium Controller System

Neptune A3 Apex Aquarium Controller System is used for monitoring and controlling various parameters of an aquarium, including temperature, pH, water level, and leak detection, while allowing remote access and management through the Apex Fusion interface.

Neptune Systems A3 Apex System -- The control you want, monitoring you need, and with room to grow for the everyday hobbyist

  • A3 Apex base unit
    • 3 FMM Ports
    • 6 Switch Digital Input
    • 2 Aquabus Ports
    • 1 pH/ORP* probe port
    • 1 Temperature probe port
    • Both WiFi & Ethernet compatible
    • New built-in audible alarm
    • Expandable
  • Energy Bar 632
  • Track temperature and pH with included lab-grade, double-junction probes
  • Monitor water level with new MOS Magnetic Optical Sensor
  • Stay on top of leaks with LD-2 Leak Detection Floor Sensor
  • Set reminders, log testing and dosing information, and access your tank from anywhere with Apex Fusion 

*ORP probe sold separately

IMPORTANT NOTE FOR INTERNATIONAL CUSTOMERS: The EnergyBar 832 is for use in North America (USA, Canada, and parts of Mexico) and other locales where the electrical service grid provides 120VAC 60Hz power.  For sale in international regions which use 230VAC 50Hz power, Apex systems are bundled with an EnergyBar 6 equipped with 6 outlets specific to that region (UK, EU, AU, or Schuko). EnergyBar 6 models do not include the EB832’s per-outlet power monitoring, 1LINK or DC24 ports, or per-outlet indicator LEDs.

THE APEX ECOSPHERE-- LESS HASSLE, MORE SUCCESS
Built in WiFi, key parameter monitoring, and reliable equipment control. Prevent catastrophes, take corrective actions, and receive alerts to your smart phone when things go awry. Set reminders, log testing and dosing information, and keep tabs on your aquarium from anywhere in the world. All this and more is possible with the Neptune Apex Controller System!

The Apex's included WiFi allows you to connect to the free Fusion Cloud interface, where you can do everything from calibrating probes to customizing outlets with just a few taps. Fusion also gives you the ability to monitor and control your Apex from anywhere and on nearly every device platform – computer, tablet, or smart phone – Windows, OSX, iOS, or Android.

The Fusion interface has a user-friendly design sure to create a headache-free command center for all your aquarium automation needs. Its drag and drop interface allows you to toggle control switches, graphs, video tiles and more to your dashboard, allowing for easy customization that is focused on your individual monitoring needs. Being that the Fusion is a web-based application, you will never have to endure the rigmarole of endless app updates, clumsy touch screens, or complicated drivers to install. Whenever you open the interface, you are always running the most current version of the software. Set up and configuration is streamlined with an easy-to-follow guided user interface.

Included with the Apex Controller System is the Energy Bar 832-- the power control hub to rule them all. They are the only UL-certified power bars approved for use in aquarium applications. Each of the eight individual outlets has independent power consumption monitoring with its own LED indicator status display, and the power supply feeds an additional three built-in 1LINK ports as well as two 24VDC accessory ports. Now you can connect additional Neptune accessories like the DOS and WAV pump directly to the Energy Bar 832, saving room and eliminating messy cords around your aquarium. 

A3 Apex Base Unit

The A3 Apex is a great entry into gaining full control over your tank, giving you everything you need to get up and running at an affordable price. Monitor temperature, pH, surface leaks, and water level with the ability to control additional aquarium equipment with the included EB832. The A3 Series Apex base unit includes a built-in audible alarm and three FMM ports for connecting all fluid monitoring sensors, an upgrade from the A2 Series which required a separate module purchase. 

Neptune Systems Apex Energy Bar 632 UK

When they decided to create an Energy Bar for this new Apex, it was designed from scratch. The Energy Bar 632 not only has six 240V AC outputs, but also includes an internal 100W 24VDC power supply. That power supply powers three built-in 1LINK ports and two 24VDC accessory ports. Each individual outlet has independent power monitoring and there are individual LED indicators for each outlet. This LED indicates when the outlet is powered. The LED flashes when there is an overload.

The safety of our customers is important. That’s why we design every product according to established safety standards. In the case of the Energy Bar 632, we have gone a step further and the Energy Bar 632 now also meets the CE safety standards.

Feedback from our customers has led to our Energy Bar undergoing significant developments. For years it has been requested to provide a power supply for all individual devices, but it was not possible without pricing the product out of the market. Now it’s here and comes with tons of benefits.

With this new Energy Bar 632 you now know when the pump, skimmer, UV device or other device is not operating properly and an alert message can be sent. This enables you to catch problems as they arise and prevent them from getting worse.

Since the Apex receives continuous power consumption data from the Energy Bar 632, it can be set up to notify you when a device is not using power. An example would be a return pump that shows no power consumption. Or when a skimmer has a clogged airline because the power consumption is different than normal. These high and low limits can be customized for each individual outlet.

With all the functionalities of the Energy Bar 632, it is almost indispensable. For an excellent result and good health of your fish and coral you have a bigger chance of successfully maintaining your aquarium. The Energy Bar 632 is compatible with the ApexEL Entry Level Kit and the Apex Lab Grade Kit

11 Total power connections for your aquarium devices
6x 240V AC Outlets all switched with relays rated for millions of cycles
3x 1Link 24VDC Smart outlets for devices such as WAV, DOS, etc.
2x Switchable 24VDC outlets for accessories such as small pumps, solenoids, fans etc.
Built-in 1—W 24V DC Power Supply
Individual outlet current monitoring with specialized software to help optimize control and use less power.

*NEW* MOS Magnetic Optical Sensor

The Neptune MOS replaces the previous OS-1-M and features an updated design that fits into tighter spaces and helps to prevent water incursion into the sensor. The MOS plugs into an Apex FMM port and, using reflected infrared light, will signal your Apex when it changes state from being wet to dry or dry to wet. This sensor can be used for constructing your own ATO (auto-top-off), as a high-level warning sensor in your sump, water storage level sensor, and much more. The sensors can be mounted on any type of reservoir that has up to 1/4" thick walls.

LD-2 Surface Leak Detection Sensor

Neptune's LD-2 is a full sized leak detection probe perfect for inside your stand, on hard floors, on top of skimmer cups, or any other flat surface where an overflow may cause issues. If water ever touches the sensor, your Apex Controller will be instantly notified so you can take corrective action and avoid disaster.

Lab Grade, Double Junction Probes 

The Apex system includes high-quality probes for monitoring your tank's temperature and pH. Calibration is a quick and simple process via the app dashboard, which will automatically recognize when your readings have stabilized and letting you know when to move to the next step-- no more guesswork and reading RAW data. In addition, the double junction pH probe will allow your readings to stay more stable without the need to calibrate as often.

Backwards Compatible and Easily Expandable

If you have any old modules, head units, energy bars, or other Apex accessories they will work flawlessly with the new Apex Controller. Want to add Salinity monitoring? Just connect a PM2 module. Need Dissolved O2 monitoring? Simply add a PM3. The Neptune Systems Apex is expandable and compatible, making it the ultimate reef tank aquarium controller.

Dimension

Head Unit - 4.75" L x 5.25" H x 3.25" W

Energy Bar 832 - 10" L x 6.5" H x 2.25" W

A3 Apex Bundle Includes:

1x A3 Apex Base Unit
1x Energy Bar 632 
1x Temperature Probe
1x pH Probe
1x MOS Magnetic Optical Sensor
1x LD-2 Leak Detection Sensor 
1x 6' Aquabus Cable
Calibration Solutions (7 & 10)
Mounting Screws
Getting Started Card

Note: Apex Display Module, Smart Phone, and Tablet not included.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 23893221994

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D
DD
Battle Creek, US
★★★★★ 4
Boys’ 5‑Piece Linen Suit Set
Color: Beige, Size: 16, Color: Beige, Size: 16
I ordered this 5‑piece linen suit in size 16 in the beige color. The set includes the jacket, pants, dress shirt, bow tie, and a slip‑on tie. The outer fabric is a blend of 70% polyester, 25% linen, and 5% spandex, and the lining is 100% polyester. The material is lightweight, which works well for warm‑weather events, but the pants are noticeably thinner than the jacket. The jacket feels sturdier because of the full lining. The jacket has a peak lapel, flap pockets, and cuff buttons, and the stitching and seams are tight and even. I did notice a few loose threads, but the fabric itself was smooth with no tears or flaws. The pants have an adjustable waistband, which is helpful, but the length was too long and will need to be tailored. The overall cut of the suit seems designed for children on the thinner side. The shirt included in my set was a pleated style rather than a plain dress shirt. It wasn’t the style shown in the product photos, and I would have preferred a standard shirt that could be worn for various occasions rather than a very formal shirt. The tie is a pre‑tied slip‑on style with an elastic band. I would have preferred a traditional tie instead. The suit arrived in good condition with no damage, and the color was even throughout all pieces. The price is on the higher end for similar 5‑piece sets. I rated it 4 stars because the jacket is well made and the set includes all the expected pieces, but the thin pants, unexpected pleated shirt, and slip‑on tie kept it from being perfect.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 16, 2026
J
Jacobson
Battle Creek, US
★★★★★ 5
Adorable and Well‑Made Outfit for Special Events
Color: Light Blue, Size: 10, Color: Light Blue, Size: 10
Got this suit set for my son and absolutely love it. It comes with everything he needs to look sharp, and I really appreciate that it includes both a tie and a bow tie so we can switch up the style depending on the occasion. The quality is impressive for the price — the fabric feels light and comfortable, and the whole outfit has a polished look without being stiff or uncomfortable. The fit was spot on, and the adjustable waistband is a huge help for getting it just right. My son looked great in it, and it’s definitely something he can wear for more than one event. The little details on the jacket and pants give it a classic, dressed‑up feel that works for weddings, holidays, or any special moment. Overall, it’s a stylish, practical set that makes getting him ready so much easier. Really happy with this purchase.
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Reviewed in the United States on May 1, 2026
C
Crystal
Phoenix, US
★★★★★ 4
Boys linen fabric suit
Color: Light Green, Size: 16
Boys suit set in a lighter green color. This suit is made with good proportions and seems to fit well. The sizing seems slightly big so maybe size down one size. The fabric does wrinkle easily so be aware that sitting and folding the suit may cause wrinkling. Otherwise it is a very nice suit for a formal occasion. It comes in many good colors.
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Reviewed in the United States on April 29, 2026
A
Atherney Family Farm
Waukegan, US
★★★★★ 5
Nice elegant suit for any occasion.
Color: Light Blue, Size: 12, Color: Light Blue, Size: 12
The suit set is very nice, the fabric material is durable and soft. Overall stitching is tight with nice surging of the hems and great construction on the shoulders. Buttons and button wholes are well done. I'm going to iron in the creases on the front of the pants because they weren't folded properly for shipping. The material does hold on to wrinkles so don't be afraid of your iron to get a super sharp look. The color is a soft baby blue that stands out in a crowd of black suits. With the option of an elastic tie or clip on bowtie this is everything you need to make him look presentable for a variety of occasions. My only complaint about this suit kit is the dress shirt is stiff and thin. I found some loose threads that I don't trust to not get played with. I'll probably trade it out for something with a little more cotton. As far as cost goes mid range, but definitely worth the cost. I might consider something with a vest if it's a super formal event, but I'm very happy with how this suit comes together.
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Reviewed in the United States on April 18, 2026
M
Martin V.
Boise, US
★★★★★ 5
Modern luxury with summer fabric that performs above its price!
Color: Beige, Size: 14, Color: Beige, Size: 14
Wow! My son wore it for Easter Sunday and this suit fits the bill! The linen material is spot on--not too heavy and not too light especially since the weather is warming up now. The jacket is quality made--the design is modern executive, the stitches are strong no flaws to note. The pants are tad bit longer but that's okay, build quality is also great. The white shirt is decent and matches well with the rest of the set. The bow tie and tie itself is a great complimentary to the set, though optional to wear. The whole set just has that quality you would really look for in the price range you would want to pay. Overall, best value for for the, wear right outside the bag, maybe a light ironing otherwise it's perfect! I highly recommend it, no complaints here very happy with this suit!
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Reviewed in the United States on April 5, 2026

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