---
product_id: 619153697
title: "FZONE Aquarium ATO with Controller, QST2.0 Auto Top Off System for Saltwater Aquarium & Freshwater Aquarium"
brand: "fzone"
price: "S$202"
currency: SGD
in_stock: true
url: https://www.desertcart.sg/products/619153697-fzone-aquarium-ato-with-controller-qst2-0-auto-top-off
store_origin: SG
region: Singapore
---

# 74 GPH whisper pump 0.79in compact sensor Real-time overfill alert FZONE Aquarium ATO with Controller, QST2.0 Auto Top Off System for Saltwater Aquarium & Freshwater Aquarium

**Brand:** fzone
**Price:** S$202
**Availability:** ✅ In Stock

## Summary

> 💧 Keep your aquarium flawless, even when you're away!

## Quick Answers

- **What is this?** FZONE Aquarium ATO with Controller, QST2.0 Auto Top Off System for Saltwater Aquarium & Freshwater Aquarium by fzone
- **How much does it cost?** S$202 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/619153697-fzone-aquarium-ato-with-controller-qst2-0-auto-top-off)

## 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

- • **Whisper-Quiet Pump:** 74 gallons per hour capacity with near-silent operation ensures efficient water flow.
- • **All-Inclusive Setup:** Includes strong magnets, check valve, and 6ft tubing for hassle-free installation.
- • **Smart Safety Alerts:** Overfill protection with audible and visual alarms prevents costly spills and malfunctions.
- • **Ultra-Compact Design:** Sleek 0.79-inch sensor fits rimmed, rimless, and sump tanks without clutter.
- • **Precision Optical Sensing:** Dual sensors detect water level changes within 0.6cm for flawless auto top-off.

## Overview

The FZONE Aquarium ATO QST2.0 is a cutting-edge auto top-off system designed for both saltwater and freshwater tanks. Featuring ultra-precise dual optical sensors, a whisper-quiet 74 GPH pump, and advanced safety alerts, it ensures your aquarium maintains perfect water levels effortlessly. Compact and easy to install with all accessories included, it’s the ultimate solution for busy aquarium enthusiasts who demand reliability and peace of mind.

## Description

FZONE Aquarium ATO with Controller, QST2.0 Auto Top Off System for Saltwater Aquarium & Freshwater Aquarium

## Features

- Upgraded 2.0 ATO with Independent Controller: The auto top off system effectively monitors and replenishes evaporated water on a daily basis, providing a convenient and time-saving solution for both saltwater and freshwater tank fish keepers, particularly during business trips or holidays. With its upgraded 2.0 version, the ATO is equipped with an enhanced visual interface, allowing you to easily initialize, pause, or resume the device using the FZ button.
- Compact Size: the entire optical sensor unit of ATO is ONLY 0.79 inches diameter. The ATO works on rimmed, rimless tanks or sump tanks. The dual precision optical sensors, spaced 0.1 cm apart, monitor level fluctuations accurately within a 0.6 cm difference. Notice The Auto top off system suitable for tank with wave fluctuation less than 1cm
- More Safer: The Auto top off QST 2.0 provides real-time overfill protection. The ATO controller triggers a beeping sound and visual alert, halting the pump if refilling takes more than six times the calculated EFTT. It also detects sensor/controller malfunctions and empty reservoirs, ensuring maximum safety.Version 2.0 includes new technology making our ATO’s the most safe option.
- Micro Whisper Pump: The Auto top off remarkably compact pump is designed to perfectly fit tanks with a neck size larger than 1.97 inches. With a capacity of 74 gallons per hour, this water pump can lift water up to 2 meters. The AFT will measure the water level and ensure that the AutoTop Off system does not unnecessarily activate the water pump, increasing its durability and longevity.
- All accessories included: Strong magnets can support aquarium galss or Acrylic wall thickness up to 0.78 inches (20mm). Check valve prevents backflow & will not drain your main display. Tubing is 6 feet(180cm), 7mm inner diameter.
- Fzone will offer a round-the-clock service, and you can reach out to us at any time for any product-related concerns.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | FZONE |
| Colour | 580p-blue |
| Material | Polypropylene (PP) |
| Style | Auto |
| Product Dimensions | 5L x 3W x 3H Millimeters |
| Power Source | Corded Electric |
| Item Weight | 0.4 Kilograms |
| Maximum Flow Rate | 1.23 Gallons Per Minute |
| Maximum Lifting Height | 2 Metres |
| Voltage | 15 Volts |
| Manufacturer | FZONE |
| Specific Uses For Product | Inside |
| Item model number | FZ-580P |
| ASIN | B0C68N3WK9 |

## Product Details

- **Brand:** FZONE
- **Colour:** 580p-blue
- **Material:** Polypropylene (PP)
- **Style:** Auto
- **Product Dimensions:** 5L x 3W x 3H Millimeters
- **Power Source:** Corded Electric
- **Item Weight:** 0.4 Kilograms
- **Maximum Flow Rate:** 1.23 Gallons Per Minute
- **Maximum Lifting Height:** 2 Metres
- **Voltage:** 15 Volts

## Images

![FZONE Aquarium ATO with Controller, QST2.0 Auto Top Off System for Saltwater Aquarium & Freshwater Aquarium - Image 1](https://m.media-amazon.com/images/I/51LdVhZJ0ML.jpg)
![FZONE Aquarium ATO with Controller, QST2.0 Auto Top Off System for Saltwater Aquarium & Freshwater Aquarium - Image 2](https://m.media-amazon.com/images/I/61o2kOFrlrL.jpg)
![FZONE Aquarium ATO with Controller, QST2.0 Auto Top Off System for Saltwater Aquarium & Freshwater Aquarium - Image 3](https://m.media-amazon.com/images/I/61mWx1T2hGL.jpg)
![FZONE Aquarium ATO with Controller, QST2.0 Auto Top Off System for Saltwater Aquarium & Freshwater Aquarium - Image 4](https://m.media-amazon.com/images/I/61NoiLfKB8L.jpg)
![FZONE Aquarium ATO with Controller, QST2.0 Auto Top Off System for Saltwater Aquarium & Freshwater Aquarium - Image 5](https://m.media-amazon.com/images/I/71aVOgelolL.jpg)

## Frequently Bought Together

- FZONE ATO with Controller, QST2.0 Auto Top Off System for Saltwater Aquarium & Freshwater Aquarium
- PAIZOO Fish Tank Digital Thermometer Accurate LED Display to ±0.9°F Tank Thermometer Aquarium Temperature Measurement Suitable for Fish, Axolotl, Turtle or Aquatic

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-01-23*