The 3-in-1 ReefATO+

Exceptionally reliable and smart ATO, temperature monitor and leak detector

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Smart. Safe. Quiet.

The ReefATO+ is designed to maintain a stable salinity and water volume in a reef aquarium by automatically replenishing the water lost due to evaporation. In addition, the ReefATO+ provides two other critical aquarium health indicators: a fully featured on-line digital temperature monitor and a leak detector.

The ReefATO+ Consists of:


ATO Sensor

Slim-line, multi-input, titanium probe, solid-state (EC technology) water level sensor, with a built in digital thermometer accurate to 0.1 degree.

ATO Pump

Quiet, variable flow, serviceable ATO pump (6–10w), diameter 4.5cm / 1.8”, max flow 300 lph / 75 gph, max head 2.5m / 8’.

Leak Detector

Highly sensitive, REEF-SPEC, titanium probe leak detector for RO and seawater, triggers notifications to App with optional audible alarm.

Smart Controller

The micro-processor monitors and reliably controls all of the components and connects them to the ReefBeat eco-system.

Complete Installation Kit

• Sensor holder and magnetic corner mounting bracket for 12mm ½” glass.
• 3M /10′ – 1.5mm / 1/16″ thick silicone tubing ID 5mm / 0.2″.
• Silent flow – Tube holder, clips on 4 – 12mm / ½” glass.
• Siphon Breaker.


l-proof (solid-state EC technology) water level sensor with built-in safety shutoff.
Automatic shut-down if the sensor is not connected, if the pump runs significantly longer than normal, if the RO reservoir runs out of water or if a leak is detected.

How it works

Water Level Sensor


ATO Pump

Leak Detection

How it Works

The EC technology titanium probes detect the water levels that triggers the pump to be switched on and off to maintain a stable water level and salinity.









of Mind

Current status of all features of the ReefATO+.

See the current water level in the pump chamber.

Hourly record of number of fills and volume of water added to your aquarium for the last 28 days.

Detailed record of minimum, maximum and average temperatures for the last 28 days.

Set the desired and acceptable temperature ranges for your aquarium.

Settings preferences for the Leak Detector.

Receive notifications if the temperature is outside acceptable range, if there is a leak or if your RO reservoir has run dry.


ReefBeat App

One App to Control Them All!

ReefBeat integrates all of Red Sea’s smart devices into one smart, synchronized eco-system that you can fully control from the palm of your hand, providing you with extra peace of mind, as just a quick glance will update you on the status of all your devices.


ATO Sensor

Tube Holder

Syphon Breaker

ATO Pump

ATO Sensor

Secure and easy mounting in all systems

Red Sea Aquariums

Other Aquariums


SKU 4287
Barcode # 730773356102
Brand Red Sea
Shipping Weight 2.8000kg
Shipping Width 0.200m
Shipping Height 0.150m
Shipping Length 0.300m
Shipping Cubic 0.009000000m3

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