---
product_id: 450900061
title: "Aquarium ATO Auto Top Off Refilling System with Pump, Aquarium Water Refiller with Dual Optical Sensor, Upgraded QST Tech and Smart ETFT Algorithm for Both Reef and Plant Tank"
brand: "fzone"
price: "€ 178.21"
currency: EUR
in_stock: true
url: https://www.desertcart.nl/products/450900061-aquarium-ato-auto-top-off-refilling-system-with-pump-aquarium
store_origin: NL
region: Netherlands
---

# 70 GPH pump flow rate 0.8 inch sensor diameter QST 2.0 real-time safety monitoring Aquarium ATO Auto Top Off Refilling System with Pump, Aquarium Water Refiller with Dual Optical Sensor, Upgraded QST Tech and Smart ETFT Algorithm for Both Reef and Plant Tank

**Brand:** fzone
**Price:** € 178.21
**Availability:** ✅ In Stock

## Summary

> 💧 Keep your reef flawless with smart, spill-proof precision!

## Quick Answers

- **What is this?** Aquarium ATO Auto Top Off Refilling System with Pump, Aquarium Water Refiller with Dual Optical Sensor, Upgraded QST Tech and Smart ETFT Algorithm for Both Reef and Plant Tank by fzone
- **How much does it cost?** € 178.21 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/450900061-aquarium-ato-auto-top-off-refilling-system-with-pump-aquarium)

## Best For

- fzone enthusiasts

## Why This Product

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

## Key Features

- • **Plug & Play Simplicity:** Quick-plug modular design means zero hassle installation—get your system running in minutes.
- • **Complete Pro Kit Included:** Powerful 70 GPH pump, strong magnets, check valve, and hose holder—everything to keep your tank perfectly topped off.
- • **Safety First with QST 2.0:** Real-time monitoring halts pump instantly on anomalies, protecting your aquatic ecosystem 24/7.
- • **Smart Refill, No Overflow:** Upgraded ETFT & AFT tech intelligently adapts refill time to your tank size, preventing spills and waste.
- • **Precision in a Miniature Package:** Compact 0.8-inch dual optical sensor fits rimmed, rimless, and sump tanks seamlessly.

## Overview

The Fzone Aquarium ATO Auto Top Off System features a compact 0.8-inch dual optical sensor and a powerful 70 GPH pump, designed for both freshwater and reef tanks. Its advanced ETFT, AFT, and QST 2.0 technologies ensure precise, safe, and adaptive water refilling with real-time monitoring to prevent overflows and pump dry runs. Easy to install with a quick-plug module and equipped with essential accessories, it offers a reliable, maintenance-free solution backed by a one-year warranty.

## Description

Fzone Aquarium ATO Auto Top Off Refilling System with Pump, Aquarium Water Refiller with Dual Optical Sensor, Upgraded QST Tech and Smart ETFT Algorithm for Both Reef and Plant Tank

## Features

- Compact size - the entire optical sensor unit ONLY 0.8 inches diameter. The unit works on rimmed and rimless tanks, and as well as sump tanks. The whole machine is designed with quick-plug module, which is free of setup and super simple to install. The small size is not only beautiful, but also suitable for freshwater and seawater grass tanks of various sizes.
- New and Improved Features - Upgraded ETFT (Extended Time Filling Technology), AFT (Anti-fluctuation Technology), and QST 2.0 (Quick Security Technology). With all these new upgrades combined, our ATOs are far superior and safer. ETFT recognizes your tank size after it first initialized. Working alongside the ETFT, the AFT will be able to decide how long it takes to refill your tank without over-filling it when the QST alarm is triggered.
- QST 2.0 real-time monitoring - Prevents overfilling and pump dry run. The controller will give a visual alert and stop the pump immediately when it senses a refilling time more than 6 times longer than the time calculated by ETFT. QST can detect a malfunction of the sensor/controller or even an empty reservoir.In version 2.0 we incorporate ETFT feature and not relying on first filling time from version 1. Flooding barely happens when following the instructions carefully.
- Dual sensing optical probe-The dual precision optical sensors are 0.1 cm apart, which enables it to monitor the level fluctuation precisely (less than 0.6cm difference). The dual-sensing probe with excellent performance can operate in a completely dark environment, you could use it with confidence！
- Everything you need is included in the package - Powerful magnet supports 15mm thick glass wall. Check valve prevents water from back flowing from the tank. Hose holder allows you easily secure the tubing. Powerful 70gph water pump can lift water up to 2 m high.
- One-year warranty--Fzone will offer a one-year warranty, round-the-clock service, and you can reach out to us at any time for any product-related concerns.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | FZONE |
| Part Number | FZ-360P-DE |
| Product Dimensions | 35 x 20 x 7 cm; 63 g |
| Item model number | FZ-360P |
| Size | ATO -1 |
| Colour | Green |
| Style | Compact |
| Material | Plastic |
| Pattern | ATO |
| Power Source | AC/DC |
| Item Package Quantity | 1 |
| Flow rate | 1.23 Gallons Per Minute |
| Special Features | Anti-fluctuation technology, Extended filling technology, Fast Safety Technology |
| Usage | Indoor |
| Included Components | Strong magnets, check valve, 74 gallon per hour water pump |
| Batteries included? | No |
| Batteries Required? | No |
| Item Weight | 63 g |

## Product Details

- **Brand:** FZONE
- **Colour:** Green
- **Material:** Plastic
- **Style:** Compact
- **Power source:** AC/DC
- **Item weight:** 63 Grams
- **Maximum flow rate:** 1.23 Gallons Per Minute
- **Maximum lifting height:** 2 Metres
- **Manufacturer:** FZONE
- **UPC:** 764595878146

## Images

![Aquarium ATO Auto Top Off Refilling System with Pump, Aquarium Water Refiller with Dual Optical Sensor, Upgraded QST Tech and Smart ETFT Algorithm for Both Reef and Plant Tank - Image 1](https://m.media-amazon.com/images/I/61b5Wpn3czL.jpg)

## Available Options

This product comes in different **Colour Name** options.

## Questions & Answers

**Q: Any time the pump looses power and reboots when it gets power back does it have to refill all the way to top line for measurement? Or is it a one time**
A: Yes it has to refill to the top sensor so it can recycle, also if water level goes way below sensor when it reboots it will only pump 3 times then red light comes back on so unplug and plug back in so it can pump remainder water to reach level you might have to do this several times( i hope not) usually once is sufficient, hope this helps.

**Q: Can I use it on a 40 gal ?**
A: Yes, it will work fine.

**Q: Will this still work if I put a longer tube on it?**
A: Sure

**Q: How do you install hose clamp on a rimmed tank?**
A: Just rotate it. It will fit.

## Frequently Bought Together

- Fzone Aquarium ATO Auto Top Off Refilling System with Dual Optical Sensor for Both Reef and Fresh Tank （360P)
- Seachem Reef Glue Cyanoacrylate Gel Coral Frag Mounting, 20g (001167)

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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-01-24*