Regular price $399.00

In Stock

  • FREE Delivery over $100


Dosing pump ATO is a smart solution from Reef Factory designed for automatically topping up evaporated water in the aquarium. This incredibly precise tool is the result of combining an ultra-accurate pump with liquid level sensors. The Dosing pump ATO detects a drop in water level and automatically replenishes it, helping to maintain the desired salinity and stable parameters.

Thanks to precise data, monitoring the amount of added water to the system is very easy. The Smart Reef application allows you to set an alarm that informs you about the remaining water in the top-up container. Furthermore, unlike traditional pumps used in automatic top-offs, Reef Factory's solution is rust-free, thanks to the use of a dosing pump.

What sets Reef Factory apart is the largest number of Smart devices for marine aquariums. Dosing pump ATO is one device from the Smart devices family by Reef Factory. The pump has a control panel in the Smart Reef app, which allows remote management of the device, as well as planning and reviewing the history of top-offs. Alerts will inform you about important events in the aquarium. Dosing pump ATO operates on WiFi technology. This innovative solution from Reef Factory elevates and revolutionizes the way evaporated water is topped up. Precision, rust-free assurance, and the best Smart functionality in the world!

Key Features:

  • Precision in water dosing - as little as 0.01 ml
  • Rust-free assurance
  • Accurate statistics of water dosed into the aquarium
  • Information and alarm for the capacity of the RO/DI water top-up container
  • World-class Smart functionality
  • Silent operation
  • Durable tubing for the dosing pump
  • Easy DIN rail mounting
  • The pump is one of over 20 Smart devices offered by Reef Factory, allowing you to build the largest system of devices in a single application.

All you need to control the Smart device is the free Smart Reef application. You can install it on your mobile device (Android, iOS) or operate it through a web browser. Simply connect the device to your Smart Reef account to enjoy a wide range of intelligent features.

Smart Features:

  • Remote management of the device through the Smart Reef app
  • Statistics on dosed water
  • Information about the container and an alarm for low water levels
  • Time-based mode - regular automatic dosing of the specified amount of water
  • Quick dosing edits and the ability to add an extra dose outside the schedule
  • Automatic top-up pause from the app
  • Smart notifications

Float Switches

Dosing pump ATO is equipped with reliable and trouble-free float switches. This approach provides marine aquarists with the assurance of smooth operation and user convenience. The lower float activates or deactivates water top-up. The upper float will alert in case of excessively high water levels in the sump or aquarium.

Peristaltic Pumps

Dosing pump ATO operates based on entirely new peristaltic pumps designed to meet the needs of marine aquarists. Their main advantages are high precision, reliability, and silent operation.

Modern Equipment Mounting

To meet the needs of aquarists, we have improved the method of placing equipment in the cabinet. The latest devices from Reef Factory feature an innovative mounting system based on a DIN rail. This is an incredibly convenient and flexible solution that makes it easier to maintain order in the cabinet.


Water dosing rate:


Amount of dosed water

1 minute

62 ml / 0.016 Gal

10 minutes

620 ml / 0.16 Gal

100 minutes

6,2 L / 1.6 Gal

Tubing durability of the dosing pump

Aquarium size

Approximate evaporation rate

Approximate tubing durability

100L / 26 Gal

1L (0.26 Gal) / daily

10 years

300L / 79 Gal

3L (0.8 Gal) / daily

3,3 years

500L / 132 Gal

5L (1.3 Gal) / daily

2 years

Device dimensions and weight:

Width: 6.7 cm / 2.6 in

Body depth: 6.7 cm / 2.6 in

Depth with head and handle: 9.3 cm / 3.7 in

Height: 6.7 cm / 2.6 in

Head: 4.9 x 4.9 x 2.3 cm / 1.9 x 1.9 x 0.91 in

Weight: 770 g / 1.7 lbs

Technical Parameters:

Dosing accuracy: +/- 0.01 ml

Number of dosing heads: 1

Tubing head durability: 1000 hours - see the table above

Maximum length of water tubing: 2m

Operating noise level: 42 dB

WiFi communication: 2.4GHz b/g/n

Operating temperature: 20-30 °C

Ambient humidity: 0 to 95% RH

IP 21 sealing rating

Minimum dosing speed: 0.1 ml/min


Power Specifications:

12V 1A via adapter 100-240 V AC 50/60 Hz

Power consumption: 0.5-4.0 W max


The device has a CE compliance declaration and FCC certification.

Package Contents:

  • Device
  • Instruction manual
  • 1x RF PRO L head
  • Double hanger for water level sensors
  • 2x water level sensors with 5.5 / 2.1 connectors
  • 12V 1A power adapter - AC 110-230V 50-60Hz with a set of AC socket adapters
  • 1xDIN rail mounting bracket
  • Neodymium magnet for device reset

The World's Largest Smart Device System for Marine Aquariums

Reef Factory offers over 20 Smart products for marine aquariums, managed through the free Smart Reef application. The lineup includes ultra-efficient and energy-saving lights like Reef Flare Pro, renowned water testing automation tools such as KH Keeper Plus and Smart Tester, as well as numerous other devices to support smart management of marine aquariums. Reef Factory is also a producer of dedicated marine aquarium chemical products and analytical services, such as ICP testing. What sets Reef Factory apart is the most comprehensive and free Smart Reef application, designed for aquarists to simplify daily care at every possible level.

For more information, please visit:

Our website:

The Reef Factory Family Facebook group:

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Orders above $60 gets free delivery. Orders below $60 delivery is $15.

CBD / Sentosa / Jurong Island/ Orchard has an additional surcharge of $9.90.

Orders are processed within 3 working days.