---
product_id: 545272536
title: "Auto Top Off System- Smart ATO Lite Water Filler Refiller Advanced Water Level Controller w/Pump for Reef and Freshwater Saltwater Tanks Aquarium"
brand: "wonice"
price: "¥2814"
currency: JPY
in_stock: false
reviews_count: 8
url: https://www.desertcart.jp/products/545272536-auto-top-off-system-smart-ato-lite-water-filler-refiller
store_origin: JP
region: Japan
---

# 240V corded power 280 L/h max flow rate 0.6cm sensor accuracy Auto Top Off System- Smart ATO Lite Water Filler Refiller Advanced Water Level Controller w/Pump for Reef and Freshwater Saltwater Tanks Aquarium

**Brand:** wonice
**Price:** ¥2814
**Availability:** ❌ Out of Stock

## Summary

> 💧 Keep your reef thriving with precision and style—never miss a drop!

## Quick Answers

- **What is this?** Auto Top Off System- Smart ATO Lite Water Filler Refiller Advanced Water Level Controller w/Pump for Reef and Freshwater Saltwater Tanks Aquarium by wonice
- **How much does it cost?** ¥2814 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/545272536-auto-top-off-system-smart-ato-lite-water-filler-refiller)

## Best For

- wonice enthusiasts

## Why This Product

- Trusted wonice brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Smart Safety Tech:** QST sensors detect overfill and dry run, protecting your aquatic ecosystem 24/7.
- • **Plug & Play Simplicity:** Hassle-free installation with all accessories included—perfect for busy pros and hobbyists alike.
- • **Reliable Power & Support:** Robust 74 GPH pump backed by a 2-year warranty and dedicated customer care.
- • **Ultra-Compact, Ultra-Cool:** Sleek 0.7-inch diameter fits discreetly in any aquarium setup, rimmed or rimless.
- • **Effortless Water Level Mastery:** Automatically stabilizes your tank’s water to prevent harmful salinity swings.

## Overview

The WONICE Auto Top Off System is a compact, smart water level controller designed for reef and freshwater tanks. Featuring dual optical sensors with 0.6cm accuracy and a powerful 280 L/h pump, it ensures stable aquatic conditions by automatically refilling water and preventing overfill or dry running. Its space-saving design fits any aquarium discreetly, while the included accessories and 2-year warranty provide a seamless, worry-free experience for aquarium enthusiasts.

## Description

Full description not available

## Features

- Maintain a Stable Aquatic Environment - Our ATO system automatically adjusts water levels, preventing salinity fluctuations and ensuring a healthy habitat for marine life. Ideal for both fish tanks and eco-ponds.
- Smart, Space-Saving Design - At just 0.7 inches in diameter, our ATO seamlessly fits into any aquarium, whether rimmed or rimless. No intrusive setup, just efficient water level control.
- Real-Time Protection & Easy Setup - With QST technology, enjoy worry-free operation as the ATO detects and prevents overfilling or dry running. Simple installation makes it a perfect gift for aquarium enthusiasts.
- Precision Sensors for Reliable Performance - Our ATO's dual optical sensors offer accurate water level monitoring within 0.6cm difference, delivering superior and safer performance for your tank.
- Complete Package & Warranty - The kit includes all necessary accessories, from powerful magnets for secure installation to a reliable 74gph water pump. Plus, you get a two-year warranty and excellent customer support for added peace of mind.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | WONICE |
| Color | Black |
| Material | Plastic |
| Style | Auto ATO Lite Controller /Power Adapter /Universal Tube Holder /DC Refill Pump/ Siphon Break /Tubing |
| Power Source | Corded Electric |
| Item Weight | 0.5 Pounds |
| Maximum Flow Rate | 2.8E+2 Liters Per Hour |
| Maximum Lifting Height | 8.2 Feet |
| Voltage | 240 Volts (AC) |
| Manufacturer | WONICE |
| UPC | 768447192978 |
| Item Weight | 8 ounces |
| Product Dimensions | 0.5 x 0.5 x 0.5 inches |
| Item model number | WNC-01 |
| Included Components | PUMP POWER |
| Batteries Required? | No |

## Product Details

- **Brand:** WONICE
- **Color:** Black
- **Material:** Plastic
- **Style:** Auto ATO Lite Controller /Power Adapter /Universal Tube Holder /DC Refill Pump/ Siphon Break /Tubing
- **Power Source:** Corded Electric
- **Item Weight:** 0.5 Pounds
- **Maximum Flow Rate:** 2.8E+2 Liters Per Hour
- **Maximum Lifting Height:** 8.2 Feet
- **Voltage:** 240 Volts (AC)
- **Manufacturer:** WONICE

## Images

![Auto Top Off System- Smart ATO Lite Water Filler Refiller Advanced Water Level Controller w/Pump for Reef and Freshwater Saltwater Tanks Aquarium - Image 1](https://m.media-amazon.com/images/I/710yrsITrGL.jpg)
![Auto Top Off System- Smart ATO Lite Water Filler Refiller Advanced Water Level Controller w/Pump for Reef and Freshwater Saltwater Tanks Aquarium - Image 2](https://m.media-amazon.com/images/I/71k-do6-M2L.jpg)
![Auto Top Off System- Smart ATO Lite Water Filler Refiller Advanced Water Level Controller w/Pump for Reef and Freshwater Saltwater Tanks Aquarium - Image 3](https://m.media-amazon.com/images/I/71myL5qMfjL.jpg)
![Auto Top Off System- Smart ATO Lite Water Filler Refiller Advanced Water Level Controller w/Pump for Reef and Freshwater Saltwater Tanks Aquarium - Image 4](https://m.media-amazon.com/images/I/61tTnyIdODL.jpg)
![Auto Top Off System- Smart ATO Lite Water Filler Refiller Advanced Water Level Controller w/Pump for Reef and Freshwater Saltwater Tanks Aquarium - Image 5](https://m.media-amazon.com/images/I/61UsaLn+gGL.jpg)

## Questions & Answers

**Q: Does this have automatic shut off when it fills ?**
A: yes, it shuts off automatically when it fills.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Broke after a day, got sent a new one!
*by E***N on April 20, 2024*

I mean, I like the overall design and stuff, worked great for a lil bit, but by next morning it was stuck flashing in reboot mode, only when it was trying to refill too. The pump would turn on for a fraction of a second before turning off, tried unplugging it, moving sensor locations. . Nothing-update-The seller reached out to help resolve the issues, I did end up returning the previous pump and got a new one for free, and this one has been working without an issue! Sensor seems accurate and it comes with a generous amount of tubing, do be warned the LED is a bit bright though, definitely better for the sump.

### ⭐⭐⭐⭐⭐ Effortless Aquatic Bliss: Simplify Your Water Management Today!
*by M***X on November 6, 2023*

Never have I come across a more reliable and efficient solution for managing water levels than this. The setup process was a breeze, thanks to the clear and straightforward instructions that left no room for confusion. Once installed, the system proved its worth with flawless precision, ensuring that my tank remained consistently full without any hiccups. What's truly impressive is the remarkable strength of the accompanying sensor's magnet, which firmly secures it in place, leaving no room for worries about displacement. This innovation has made my water management a hassle-free experience, allowing me to simply set it and forget it. Kudos to the creators for providing such a simple yet complete solution that has transformed my aquarium maintenance into a stress-free delight.

### ⭐ Not worth it! - edit: don't waste your money!
*by D***Y on January 8, 2025*

The first pump gave up in a week, so got a replacement, but the new one is barely pumping to keep the water levels. I have to manually top it off everyday. I have a 50 gallon tank, and also live in low humidity state, I think the pump can't keep up with all the refilling it has to do.The pump is very silent (when it works, lol), and the setup is easy to install. Would recommend for a smaller tanks (~30 gallons).Edit: the replacement stopped working too! Don't waste your money.

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-03-15*