---
product_id: 541255634
title: "Aquarium ATO with Controller, QST2.0 Auto Top Off System for Saltwater Aquarium & Freshwater Aquarium"
brand: "fzone"
price: "NT$4176"
currency: TWD
in_stock: true
url: https://www.desertcart.tw/products/541255634-aquarium-ato-with-controller-qst2-0-auto-top-off-system
store_origin: TW
region: Taiwan
---

# 74 GPH micro pump flow 0.79 in optical sensor diameter Real-time overfill alarm Aquarium ATO with Controller, QST2.0 Auto Top Off System for Saltwater Aquarium & Freshwater Aquarium

**Brand:** fzone
**Price:** NT$4176
**Availability:** ✅ In Stock

## Summary

> 💧 Keep your aquarium flawless and worry-free with FZONE’s smartest Auto Top Off system!

## Quick Answers

- **What is this?** Aquarium ATO with Controller, QST2.0 Auto Top Off System for Saltwater Aquarium & Freshwater Aquarium by fzone
- **How much does it cost?** NT$4176 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/541255634-aquarium-ato-with-controller-qst2-0-auto-top-off-system)

## 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

- • **Compact & Versatile Fit:** Slim 0.79-inch sensor fits rimmed, rimless, and sump tanks, adapting seamlessly to your setup.
- • **Smart Safety Monitoring:** QST 2.0 tech halts refilling and alerts you instantly if overfill or sensor issues arise.
- • **Precision Water Level Control:** Dual optical sensors maintain water level within 0.6 cm for flawless aquarium balance.
- • **Whisper-Quiet Pump Performance:** 74 gallons per hour flow at just 30 dB keeps your aquatic environment serene and efficient.
- • **Hassle-Free Installation & Support:** Includes magnets, check valve, 6-ft tubing plus 2-year warranty and 24/7 expert support.

## Overview

The FZONE Aquarium ATO QST2.0 is a cutting-edge auto top-off system designed for both saltwater and freshwater tanks. Featuring dual optical sensors for precise water level management, a whisper-quiet 74 GPH micro pump, and advanced safety alarms, it ensures your aquarium stays perfectly balanced even during your busiest days or travels. Compact, easy to install, and backed by a 2-year warranty with round-the-clock support, it’s the ultimate upgrade for any serious aquarist.

## Description

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

## Features

- Upgraded 2.0 ATO System：The 2.0 ATO system ensures efficient daily water level maintenance for saltwater and freshwater tanks, making it ideal for use during trips or holidays. The upgraded interface allows you to easily start, pause, or resume the system with the FZ button
- Compact and Versatile Design：The optical sensor measures just 0.79 inches in diameter, making it suitable for rimmed, rimless, or sump tanks. Dual sensors, spaced 0.1 cm apart, monitor water levels with precision, maintaining a difference of only 0.6 cm. Recommended for tanks with wave fluctuations under 1 cm.
- Enhanced Safety Features：QST 2.0 technology provides real-time overfill protection. The system stops the pump and triggers an alarm if refilling exceeds 3 times the preset limit. It also detects sensor issues and low reservoir levels for added safety.
- Quiet Micro Pump：The compact pump fits tanks with neck sizes over 1.97 inches, offering a flow rate of 74 gallons per hour and a lift height of up to 2 meters. Optimized operation reduces unnecessary activations, extending pump life.
- Complete Accessories Included：The set includes strong magnets (compatible with tank walls up to 0.78 inches thick), a check valve to prevent backflow, and a 6-foot (180 cm) tube for quick installation.
- 2-Year Warranty & 24/7 Customer Support:FZONE provides a comprehensive 2-year warranty along with 24/7 online customer support. If you have any questions or encounter any issues with your product, our team is always available to assist you—anytime, anywhere.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | FZONE |
| Color | Blue2 |
| Material | Polypropylene (PP) |
| Style | Auto |
| Product Dimensions | 0.2"L x 0.1"W x 0.1"H |
| Power Source | Corded Electric |
| Item Weight | 0.4 Kilograms |
| Maximum Flow Rate | 1.23 Gallons Per Minute |
| Maximum Lifting Height | 2 Meters |
| Voltage | 15 Volts |
| Manufacturer | FZONE |
| Specific Uses For Product | Aquarium |
| Part Number | ATO-580P |
| Item Weight | 14.1 ounces |
| Item model number | FZ-580P |
| Size | ATO-580P ( with controller) |
| Pattern | ATO-580P |
| Item Package Quantity | 1 |
| Sound Level | 30 Decibels |
| Included Components | prevent backflow |
| Batteries Included? | No |
| Batteries Required? | No |
| Warranty Description | Manufacturer warranty for one year from date of purchase |

## Product Details

- **Brand:** FZONE
- **Color:** Blue2
- **Material:** Polypropylene (PP)
- **Style:** Auto
- **Product Dimensions:** 0.2"L x 0.1"W x 0.1"H
- **Power Source:** Corded Electric
- **Item Weight:** 0.4 Kilograms
- **Maximum Flow Rate:** 1.23 Gallons Per Minute
- **Maximum Lifting Height:** 2 Meters
- **Voltage:** 15 Volts

## Images

![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)

## 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 Taiwan*
*Store origin: TW*
*Last updated: 2026-01-30*