HYDROS ATO Kit

$79.99
in stock
UPC: 4714041211948
The HYDROS ATO (Auto Top-Off Kit) gives you precise water level management with an efficient DC micro pump and durable sensor. Designed in mind for easy integration with HYDROS controllers, it automates top-offs while reducing clutter and maintenance effort.  
  • Description
  • Additional Information
  • Reviews

HYDROS ATO Kit: A Smarter Way to Handle Aquarium Water Levels

The HYDROS ATO Kit simplifies water maintenance by automating top-offs and integrating effortlessly with your existing HYDROS system.

What Comes in the HYDROS ATO Kit?

This isn’t one of those kits where half the parts are sold separately. Everything you need is in the box:

  • HYDROS Water Level Sensor – Plugs directly into any HYDROS Sense Port

  • HYDROS DC Micro Pump – Connects to a Drive Port for smooth, compact power

  • Hang-On Tubing Mount – Keeps your tubing where it should be (and not in a tangled mess)

  • Tubing – Measures 8.5mm OD and 6.5mm ID

  • Siphon Break – Prevents backflow and adds an extra layer of safety

HYDROS ATO Sensor: Accurate, Maintenance-Free Monitoring

Forget float switches and clunky old sensors. The HYDROS ATO Sensor uses solid-state tech to monitor water levels reliably—without any moving parts.

Key Features:

  • Ultra-Compact Design – Just over half an inch thick, smaller than a US penny

  • Magnetic Mounting – Easy install on glass or acrylic up to ½" thick

  • Low-Light Ready – Works in complete darkness, perfect for hidden sumps or stands

  • Plug-and-Go Setup – Aviation-style connector snaps into any HYDROS Sense Port

  • No External Power Needed – Fewer cords and no power bricks required

ATO DC Micro Pump: Tiny Size, Mighty Flow

Don't let the size fool you. The HYDROS DC Micro Pump delivers powerful performance in a compact footprint.

Key Specs:

  • Dimensions: 1.6" L x 1.062" W x 1.45" H

  • Flow Rate: Up to 74 GPH for efficient water transfer

  • Head Pressure: Pumps effectively up to 8 feet high

  • Energy Use: Just 4.5W—your power bill won’t even notice

  • Lifespan: Brushless motor rated for 30,000 hours

  • Clean Setup: Connects to the HYDROS Drive Port without bulky adaptors

Why Choose the HYDROS ATO Kit?

This isn’t just a water top-off kit—it’s a stress-reliever for aquarists who’d rather spend time admiring fish than refilling tanks.

Benefits:

  • Cuts Down Manual Work – Automatically replaces evaporated water

  • Keeps Wiring Tidy – Fewer parts, fewer headaches

  • Built for Reliability – Solid-state sensor and pump offer dependable, long-term use

HYDROS ATO Kit Warranty

CoralVue and HYDROS back the ATO Kit with a 1-year warranty against material and workmanship defects from the date of purchase.

     

Compatible HYDROS Controllers

   

Similar HYDROS Accessories available

 

HYDROS Cables available

         

HYDROS Essentials

             

Navigate the Reef World With Us

                 
by price
$50-$99
Brand
HYDROS | CoralVue
Compatibility
HYDROS Control X2 | HYDROS Control X4 | HYDROS Control 2 | HYDROS Control 4 | HYDROS Minnow | HYDROS Sole | HYDROS Launch | Most HYDROS Devices
Product Type
ATO | Auto Top-off system | Automatic Top off system | ATO KIT
Pump Type
DC Micro Pump
Sensor Type
Optical Water Level Sensor | Water Level Sensor
Flow Rate
74 GPH
Power Consumption
4.5W Max
Control Type
Smart Aquarium Controller Integration
Includes
Water Level Sensor | DC Micro Pump Hang-On Tubing Mount | Tubing | Siphon Break
Primary Keywords
HYDROS ATO | auto top-off kit | water level sensor | DC micro pump | HYDROS water control | aquarium water refill | top-off system | HYDROS ATO system | aquarium ATO pump | automatic water top-off | aquarium water level control | HYDROS ATO controller | HYDROS sensor | aquarium level sensor | water top-off automation | HYDROS water level management | HYDROS Auto top-off | HYDROS Automatic top-off kit | ATO Kit | HYDROS ATO Kit | HYDROS DC Pump for Aquarium | Optical Water Level Sensor for ATO
Supporting Keywords & Synonyms
automatic water refill | HYDROS refill kit | aquarium water sensor | tank top-off system | smart water level control | ATO pump system | aquarium water automation | water top-off kit | smart aquarium ATO | HYDROS DC pump | HYDROS water sensor kit | ATO refill pump | automatic aquarium water refill | ATO system setup | HYDROS top-off kit | smart water control system | aquarium auto refill | water top-up system | aquarium top-off controlle | HYDROS Automatic Top-Off Kit | HYDROS ATO Auto-Refill System | HYDROS Water Level Kit | HYDROS DC Pump Refill System | HYDROS Smart Top-Off Kit | HYDROS Tank Refill System
Weight
0.8 lbs
Dimensions
6.5 × 6.5 × 3 in

Reviews

There are no reviews yet.

Be the first to review “HYDROS ATO Kit”

Your email address will not be published. Required fields are marked *

1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars

Customers purchased these together

HYDROS Auto Top-Off Kit components: water level sensor, DC micro pump, tubing, and siphon break for aquarium automation.
HYDROS ATO Kit
$79.99
+
HYDROS Float Switch Sensor with Magnetic Mount pictured
HYDROS Float Switch
$34.09
+
HYDROS Rope Leak Sensor Kit with flexible detection rope, adapter cable, and mounting clips for advanced aquarium leak management.
HYDROS Rope Leak Sensor Kit
$46.19
Added to cart
MAX Nano Peninsula Complete System - excl. cabinet