A.T.O.—Automatic Top Off System Water Level controller
Tired of lifting heavy buckets to refill sumps or tanks due to evaporation?
There is finally a professional grade product that automates refilling evaporated water. The All-New A.T.O. (Automatic Top Off) device is the most advanced water level controller system on the market. Lifting heavy buckets and spilling water is now a thing of the past. Maintaining stable salinity and specific gravity are no longer a problem since the A.T.O. will refill as soon as the water level drops. The A.T.O. will keep all salt levels at consistent parameters, ensuring an optimal environment for your tank inhabitants.
Advanced Features
Float Sensors
The A.T.O. is equipped with (2) float sensors that activate within seconds when your water level drops and automatically refills your sump or tank until it reaches your desired set point. Each float sensor has been designed with an exterior guard preventing snails & hermit crabs from attaching to the sensors.
Electronic Controller Module
Our state-of-the-art electronic controller allows for (2) modes of operation with a total of (3) different set up scenarios, allowing you more choices for installation for your unique set up. Our compact controller also incorporates a visible LED panel + our innovative Audible Signal alerts when in operation mode.
Linkable Brackets
Your professional kit includes commercial grade "Linkable Brackets" that can easily be adjusted to meet your height requirements, and securely positions your float sensors. Many competing brands use inferior suction cups that are temporary that can lead to disastrous water spillage.
Pump Safety Protection
The A.T.O. automatically stops power to your return pump in you reservoir, in the event that your reservoir is low on water. This safety feature prevents pumps from running dry and failing.
Specifications
Advanced Features
Float Sensors
The A.T.O. is equipped with (2) float sensors that activate within seconds when your water level drops and automatically refills your sump or tank until it reaches your desired set point. Each float sensor has been designed with an exterior guard preventing snails & hermit crabs from attaching to the sensors.
Electronic Controller Module
Our state-of-the-art electronic controller allows for (2) modes of operation with a total of (3) different set up scenarios, allowing you more choices for installation for your unique set up. Our compact controller also incorporates a visible LED panel + our innovative Audible Signal alerts when in operation mode.
Linkable Brackets
Your professional kit includes commercial grade "Linkable Brackets" that can easily be adjusted to meet your height requirements, and securely positions your float sensors. Many competing brands use inferior suction cups that are temporary that can lead to disastrous water spillage.
Pump Safety Protection
The A.T.O. automatically stops power to your return pump in you reservoir, in the event that your reservoir is low on water. This safety feature prevents pumps from running dry and failing.
Specifications:
- Item #: Water Level Controller System
- Model: A.T.O.
- Purpose: To automatically replenish water lost through evaporation
- Power Supply for Pump Capacity: 2 Amps
- Dimensions (L x W x H): 1.5" x 2.75" x 4"
- Weight: 2 lbs
- Pump: (Not Included)
FAQ
Q: How large of a pump can I plug into the A.T.O.?
A: The A.T.O. receptacle will handle pumps up to 2amp capacity.
Q: Can the Audible Alert be turned off?
A: Yes, it can be turned off if the "Speaker Buzzer" is removed from the circuit board.
Q: Why does my A.T.O. automatically shut off after a few minutes of operation even though the water level has not reached the float sensor?
A: All A.T.O. Controllers have a factory "Float Fail-Safe" duration time period of 3 minutes and 45 seconds of operation before power to the pump is turned off. The Pump LED will glow but power to the pump will not be turned on. This feature was designed to act as a safety mechanism in the unlikely event the float sensor(s) failed or if something was to get stuck in between the sensor(s). You will have to reset the float sensor(s) to restart the controller.
Q: Can I adjust the "Float Fail-Safe" duration time period?
A: Yes, the duration time can be extended to 14 minutes of operation. (Please see instructions below on adjustment.)
How to Adjust the "Float Fail-Safe" Time Duration
| Step1: |
| Unscrew back panel off of controller (4) total screws |
Adjusting Dial is located towards the top in "Blue Color" |
 |
 |
Step2:
Use a Phillips screwdriver and turn the dial COUNTER CLOCKWISE until it locks. This setting will give a operation mode time of approximately 14 minutes or until correct water level is reached. |
 |
Manufacturer Info
JBJ is a top-of-mind brand name in freshwater and saltwater aquarium supplies. The company is committed to innovation and manufacturing only the absolute highest quality equipment. JBJ’s philosophy is "to create products that provide extra value" to hobbyists. JBJ produces hundreds of aquarium products including lights, filters, heaters, UV sterilizers, wavemakers and top-off systems. The company is best known for their affordable line of Arctica chillers and the best-selling Nano Cube aquarium series. We carry the gamut of JBJ products and accessories and are happy to provide you free technical support while you’re setting up your new equipment.
Warranty
6 month manufacturer warranty
JBJ Automatic Top Off (A.T.O.) System Water Level Controller
Reviews
JBJ ATO Water Level Control
by
JAMES MCELWEE
Unsatisfactory
Posted: 5/16/2013 from SANFORD, FL UNITED STATES
0.5
5
Experience Level:
Intermediate
Comments:
I thought I had the answer to my concerns on keeping my water level in my fish tank solved so I could go on vacation with some comfort. BOY was I WRONG I fidled for 2 weeks trying to get the Float to function without any good results. The float always stuck where ever I placed it in the tank and with any lubication I could think of to get it to work. Finally, the night before leaving I went to Home Depot and purchased a digital timer that did the job for me.
I'm VERY disappointed to find a product from Marine Depot that didn't meet the standards I had placed with them.
Well, I guess that is why they have a return policy which I will be using when I get back from vacation.
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jbj ato
by
JOHN WHITE
Excellent!
Posted: 3/16/2013 from MANSFIELD, TX UNITED STATES
5.0
5
Experience Level:
Intermediate
Comments:
Easy installation,simple to use ,keeps water level in sump perfect for skimmer.
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ATO water topp off system
by
JOSEPH BOING
Excellent!
Posted: 3/3/2013 from Largo, FL UNITED STATES
5.0
5
Experience Level:
Intermediate
Comments:
Why did I wait so long to buy this? Very easy set up, I just used a 30 gal aquarium next to my 90 gal tank and stand, drips right in to the sump. Cut a piece of plexiglas with a cabinet handle for a lid to the resivoir and hid behind a plant.I now only have to fill the 30 gal every 3-4 weeks depending on room temp. Salinity is now consistent, corals and fish are happy, I no longer drag water across room every third day. Excellent product!!
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Best bang for your buck
by
CHRISTOPHER ROBERTS
Excellent!
Posted: 2/4/2013 from STREATOR, IL UNITED STATES
5.0
5
Experience Level:
Expert
Comments:
this is a really good top off. I use mine a little differant than the examples in the owners manual. I use a 3 gallon container for the new water with r/o and a float shut off i put the ATO in mode A and then sensor 1 for low level top off then i took sensor 2 and instead of putting in reservor i put it in the sump also, but turned it upside down to prevent a mechanical malfuntion type overflow. if my reservor goes dry for some reason i really dont care its only got a chep 20.00 pump running it. but if my tank overflows in my living room i loose a 2000.00 floor. this method works flawlessly try it.
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JBJ ATO works
by
LUIS M HERNANDEZ
Excellent!
Posted: 10/19/2012 from LA PUENTE, CA UNITED STATES
5.0
5
Experience Level:
Intermediate
Comments:
This ATO system is well above the rest when it comes to pricing,reliability, and all around effectiveness. Don't go without it
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One less thing I have todo
by
KYLE KELLOGG
Excellent!
Posted: 9/27/2012 from ARLINGTON HEIGHTS, IL UNITED S
5.0
5
Experience Level:
Intermediate
Comments:
Kicks on kicks off .. Fills the sump so I don't have to everyday ...simple concept anyone can do it .. Would have liked if it was slim and stylish but it's still a wonderful product .. On the adjustment of the float .. Don really like the idea of it because how
My sump works .. Should be on a slide system and then lock it in place for maximum adjustment and versatility .. If they take my idea ... I want a thank you and a bigger tank .. Al
In all it's a great product it takes away the daily top off
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Nice unit
by
BD
Great
Posted: 8/29/2012 from ARLINGTON HEIGHTS, IL UNITED S
4.0
5
Experience Level:
Intermediate
Comments:
Really makes top off a lot easier. Highly recommended.
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Jbj auto top off
by
JONATHAN VAN
Excellent!
Posted: 8/14/2012 from BALDWIN PARK, CA UNITED STATES
5.0
5
Experience Level:
Beginner
Comments:
Wonderful tool to keep my water level stable and very easy to set up.
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Dangerous
by
dlaws
Unsatisfactory
Posted: 7/30/2012 from NORFOLK, VA UNITED STATES
1.0
5
Experience Level:
Intermediate
Comments:
Don't buy this. Worked fine for a month, then the electronics malfunctioned and left my pump on continuously. I was using mode B, so the two safety mechanisms should have been the second float switch and the 3 minute "time-out" function. The second float switch was triggered, but didn't turn the pump off. The 3 minute time-out function was not triggered, so it did not turn the pump off, and my 10 gallon top-off container was dumped into my tank, causing a flood. I've use a tunze ato on my other tank for 7 months without issue.
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Works great
by
BOB WOMBLE
Excellent!
Posted: 7/16/2012 from ARLINGTON, TX UNITED STATES
5.0
5
Experience Level:
Intermediate
Comments:
The JBJ Automatic Top Off system is fast to install and works great. I admit that I had watched a few YouTube videos but still it too less than 15 minutes to have the system installed and running. Since then my tank has been at the perfect water level. Who could ask for more?
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