Marine Depot offers FREE economy shipping for most products when you spend $29 or more! Your order will be delivered 1-7 business days after it ships out. Economy shipping methods include UPS Ground, USPS First Class, and/or SurePost. You can also upgrade your shipping to UPS Ground which speeds delivery to 1-5 business days. A shipping upgrade is $2.99 for orders under 20 lbs, $3.99 for orders 21-40 lbs, and $4.99 for orders over 41 lbs. Orders placed before 10:30 am PST Monday-Friday are shipped the same day. Free shipping is only available within the contiguous United States. Frozen foods, live foods, and items shipped directly from the manufacturer do not qualify for this special offer.
Free Upgraded Shipping For Orders $250+
Most orders over $250 qualify for FREE upgraded shipping! Your order will be delivered 1-5 business days after it ships out. Thanks to Marine Depot’s two strategically located warehouses in Nevada and Georgia, over 90% of shoppers receive their orders within 2 business using this level of service (UPS Ground). Orders placed before 10:30 am PST Monday-Friday are shipped the same day. Free shipping is only available within the contiguous United States. Frozen foods, live foods, and items shipped directly from the manufacturer do not qualify for this special offer.
$2.99 Flat Rate Shipping For Orders Under $29
Most orders under $29 ship for only $2.99 using a mix of economy shipping methods including UPS Ground, USPS First Class, and/or SurePost. Your order will be delivered in 1-7 business days after it ships out. Orders placed before 10:30 am PST Monday-Friday are shipped the same day. Our $2.99 flat rate shipping is only available within the contiguous United States. Frozen foods, live foods, and items shipped directly from the manufacturer do not qualify for $2.99 flat rate shipping.
Frozen foods are delivered 1-3 business days from the day your order ships. Frozen foods are shipped every Monday and Tuesday. Shipping cut-off is Tuesday at 10 am PST (1 pm EST). Orders received after 10 am PST on Tuesday will be shipped the following week. Shipping and handling is a $19.99 flat-rate charge so you can order as much or as little as you like.
Orders not shipped within the contiguous United States—the 48 U.S. states on the North American continent south of Canada plus the District of Columbia—are considered international orders. International orders are not eligible for Marine Depot’s free shipping promotions and additional surcharges may apply. It is important to note that not all products we carry can be shipped internationally. Any brokerage fees, tariffs and/or taxes will be billed to you directly by the shipping courier. International customers must use the same billing and shipping address.
XP Aqua Ultimate ATO - Complete 4-Sensor Aquarium Auto-Top-Off System
Why Choose Ultimate ATO?
With 2 X dual-optical sensors, the Ultimate ATO is the first ATO to include 4 sensors. The 4 sensors allow us to design a dual-stage overfill alarm that is less intrusive as well as a run-dry protection feature that prevents your sump from running dry: which is also a first. The Ultimate ATO’s versatility is also unmatched. An efficient DC pump is included for a standard installation. If you require a larger ATO pump for a remote sump installation, a Socket Switch is included that allows you to run a pump up to 10A (1000W). A solenoid valve is also included for aquariums that are topped off directly with an RO/DI system. We designed the Ultimate ATO to offer you the ultimate protection with the ultimate convenience!
Features:
World’s first 4-sensor ATO
One sensor for top-off detection
Two sensors dual-stage overfill alarm w/ QST Programming
One sensor for run-dry protection (also a first)
Versatile installation with accessories included
Efficient DC Pump – Standard
Socket switch for use with AC pumps (up to 10A)
Solenoid valve for use with RO/DI systems
Super precise water level control
Super easy installation; plug-and-play
No programming or adjustments required
Works in complete darkness
Technical Details:
Model: UATO-400P
Max mounting thickness : 1/2" (12.7 mm)
Length of Cable between Sensor and Controller : 6 ft (180 cm)
Power Adapter:
Power Input : 100~240VAC 50-60HZ
Cable Length : 6 ft (180 cm)
DC Pump:
Max Head : 6.5ft (200cm)
Flow Rate : 74 gph (280lph)
Power : 4.8 W @ 12 VDC
Cable Length : 6 ft (180 cm)
RO Solenoid Valve:
Power Consumption : 6 W @ 12 VDC
1/4 inch RO Tubing Connection
Cable Length : 4 ft (120 cm)
AC Switch:
Capacity : 100~240 VAC - 50~60 Hz
Max. Load : 10 A / 2400 W @ 240 VAC
Cable Length : 10 ft (300 cm)
*Please avoid setting up the sensor in an area with micro bubbles or direct light.
Ever since the ATO systems were invented by Tunze in 1985, they have been helping saltwater reef aquarium hobbyists maintain stable salinity levels and offering a ton of convenience. ATO is short for ‘aquarium top off’ system. It is also called an ATK ‘aquarium top-off kit’, or osmolator / osmo regulator in Europe. Here at XP Aqua, we have combined all the best ATO technologies and added several proprietary features to create the safest and most dependable ATO money can buy! Our micro sized ATO sensor features two precise optical sensors to offer you more protection. Additionally, each XP Aqua ATO system includes our intelligent QST programming to prevent overflows. If you are looking for the best ATO system, check out our awesome line of ATOs!
Ask a Question Earn 15 Points when you answer a question
Hello Pat, Thank you for the question. No, this will not interface with the Neptune System Apex Controllers. Please contact our team at 714-385-0080 if you have further questions.
Cheers!
Answered : Aug 09, 2019
By : Ivan G.
Q
What is the manufacturer's warranty on this item?
Asked : Aug 24, 2018
By : Rhonda Swetnam, Colorado
Super easy setup, less than 10 minutes. Dc pump stopped working after a day, but great communication with manufacturer, immediately sending me a replacement. Use the "switch" with a ppwerhead in the meantime and works great.
PROS
Easy to Use and Set Up, 4 Sensors, Looks good, Touch sensor button on control
CONS
None so far, no wifi text message for when my ATO bucket is low
REVIEW
I set this up on my tank in literally 10 minutes from start to finish. Very simple to use design and so far the sensors have done there job well. Theres a small tone when theres too much water added. (I learned from me adding water separately to see what happened, not the ATO malfunctioning). The...Read More
I set this up on my tank in literally 10 minutes from start to finish. Very simple to use design and so far the sensors have done there job well. Theres a small tone when theres too much water added. (I learned from me adding water separately to see what happened, not the ATO malfunctioning). The pump it comes with is Tiny but seems to be powerful enough. It comes with an attachment to allow you to add your own pump but I would definitely give the little one a try, it may surprise you. Its got literally one button thats function is easily explained in the instructions manual (Touch sensor with a Boop sound). I plan on buying one for my other tank that's currently ATO-less. (My 3rd tanks has the Tunze osmolator ATO and this one is much easier to understand and set up in comparison) (Instagram: Raiders_Reef)Hide
Most orders under $29 ship for only $2.99 using a mix of economy shipping methods including UPS Ground, USPS First Class, and/or SurePost. Your order will be delivered in 1-7 business days after it ships out.
free shipping for orders $29+
We ship 99% of the products we carry for free within the contiguous United States using a mix of economy methods including USPS First Class Mail, SurePost and UPS Ground. Your order will arrive in 1-7 business days. Just spend $29 or more!
free faster shipping for orders $250+
Over 90% of shoppers receive their orders within 2 business using UPS Ground. Upgrade from free economy shipping to UPS Ground for only $2.99—or spend $250 and we’ll upgrade you automatically!
need your order even faster? no problem!
Expedited shipping services are available for most products if you are in a hurry. Get guaranteed delivery in 2 business days, 1 business day, or next day by 10:30 am. Costs vary by location.
buy it today and we'll ship it today
Same-day shipping is available Monday-Friday for most products—place your order by 10:30 am PST. Pre-ordered and back-ordered items do not qualify, nor do drop-shipped, live, or frozen shipments.
live plants, live foods, and frozen foods delivered to your door
We ship live plants, live foods, and frozen foods within the contiguous United States. Each of these categories is subject to its own $19.99 flat-rate shipping fee to cover the special packaging and/or expedited shipping costs required to ensure safe delivery. Orders with 12+ live plants ship free!
Return any new and unused item within 60 days for a full refund. Having difficulty with a product? Contact us to speak with an aquarium expert. If you need a replacement, fill out this form.
A small segment of the 180+ brands we carry require that customers contact them directly if/when problems arise. You can view the full list of those brands and get their contact info here.
We are unable to accept returns of Digital Aquatics, Neptune Systems, Vertex Aquaristik, Aqua Illumination (AI), EcoTech Marine, GHL, or Seneye products once the manufacturer's packaging seals have been broken.
Marine Depot is an authorized reseller for every product we carry. That means when you buy aquarium supplies from us, your products are not only backed by our own 60-day return policy, they also carry full factory warranties, where applicable. Some items have a 1-year warranty, others have limited lifetime warranties. Warranty coverage varies from manufacturer to manufacturer, so please read the product description of the item(s) you are considering thoroughly for details or contact us if you have warranty questions.
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