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MagTool Aquarium Auto Top Off System, Upgraded Version Aquarium ATO with Dual Optical Sensor for Both Reef and Fresh Tanks(Duetto V2026)

MagTool Aquarium Auto Top Off System, Upgraded Version Aquarium ATO with Dual Optical Sensor for Both Reef and Fresh Tanks(Duetto V2026)

$59.00 USD
$59.00 USD $59.00 USD
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MagTool Smart Aquarium Auto top off


  • Dual optical sensors monitor replenishment and prevent overflow, maintaining stable water levels.
  • External controller with physical buttons supports one-touch pause, LED indicators for status, and a buzzer for alerts.
  • Intelligent algorithm provides dual protection to effectively prevent overflow.

The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked.

Duetto Introduction

Merchant Video
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QST (Quick Security Technology) V2.0

QST prevents overflow by setting model-specific time limits in initialization. If dispensing exceeds three times this limit, QST stops the flow. When the alarm is triggered, the controller flashes a red light and gives a buzzing alarm.

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AFT(Anti-fluctuation Technology)

AFT is designed to accurately detect water fluctuations, preventing false water replenishment triggers caused by pump or wave maker. This technology ensures stable water levels, enhancing the efficiency and reliability of water management systems.

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auto top off system saltwater aquarium ato auto top off aquarium auto top off ato system
auto top off system saltwater aquarium ato auto top off aquarium auto top off ato system

Aquarium Auto Top Off System

ATO with Controller
Buying Options

Aquarium ATO System
Buying Options

Auto Top Off System
Buying Options

ATO Saltwater Aquarium
Buying Options
Customer Reviews
4.0 out of 5 stars 161
4.1 out of 5 stars 535
3.8 out of 5 stars 12
4.1 out of 5 stars 535
Price
— — — $39.99
AIO Tank Sump
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Under-Filter sump
✔ ✔ ✔ ✔
In Display
✔ ✔ ✔ ✔
Buttom For Pause (Controller)
✔ ✘ ✘ ✘
RO/DI
✘ ✘ ✔ ✘
  • MT Duetto is an upgraded version features the external controller with a physical buttons, which supports one-touch pause, allowing users to conveniently pause the system during aquarium maintenance. With the built-in buzzer in the controller, users are directly alerted to any issues or risks. In comparison to the previous version, the LED indicator lights have been integrated into the external controller, effectively eliminating light pollution within the aquarium.
  • Compact size with integrated 1mm high-precision dual optical sensors. With a footprint of only 0.8 inches, it occupies minimal installation space, making it suitable for both rimmed and rimless tanks of all sizes. The dual optical sensors: one for monitoring water replenishment and the other for anti-overflow protection. This ensures that evaporated water is promptly replenished, maintaining a stable water level in the aquarium while effectively preventing overflow issues.
  • Featuring a dual anti-overflow mechanism, this product incorporates an advanced anti-overflow sensor and a sophisticated overflow prevention algorithm. Upon initialization, it identifies the size of the aquarium, calculates the necessary water replenishment duration, and sets the timeout for the replenishment alarms, ensuring comprehensive protection against overflows.
  • All Necessary Accessories -12V DC water pump (1.5x1.5x2.0inch, 74GPH, 8.2 ft head), power adapter, anti-siphon check valve, water pipe (1.5m), mounting cracket, instruction manual, ATO controller
  • Widely applicable, this product is designed for use in all freshwater and saltwater aquariums, including AIO tank sumps, bottom-filter sumps, and freshwater display tanks. Additionally, it comes with a warranty
  • 2-Year Warranty,Mag Tool offers a 2-year warranty on your products. Our customer service is always online. If you have any questions, please feel free to contact us. Providing you with a satisfactory solution is our after-sales goal.
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