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Red Sea 3 in 1 ReefATO+ Auto Top Off

SKU: R35610
by Red Sea
$299.99 CAD
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This exceptionally reliable auto top-off system includes a highly accurate temperature monitor plus an external leak detector and comes with a smart controller that connects it to the ReefBeat eco-system.

The ReefATO+ has a solid-state water level sensor with an array of titanium probes that pinpoint if the water is above, below, or at the desired level. This comes together with a microprocessor-controlled extra-quiet pump and multiple safety features, including an auto-shutdown mechanism if the pump is running for too long or running dry.

Each fill is completed within a precise 3mm band, keeping the water volume and salinity nice & stable. In addition, the higher-level backup probes only react when the ATO pump is on, so routine water fluctuations, such as when using roller filters or turning off the return pump, will not trigger any false alarms. The water level sensor also includes an accurate digital thermometer that has been pre-calibrated to 0.1 degrees, which provides a full log and high/low-temperature notifications.

The ReefATO+ is part of the ReefBeat ecosystem, so it has lots of smart features such as disabling the auto-fill during maintenance work and water changes or switching off the ReefRun pumps if a leak is detected.

Existing Red Sea REEFER system owners can purchase a dedicated ReefATO+ upgrade kit (at a discounted price), which is a drop-in replacement for the standard gravity-fed float valve system.
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.


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.

ReefATO+ features:

• Fail-proof (solid-state) water level sensor with built-in safety shutoff.

• Quiet, 12 VDC variable flow (6–10w) ATO pump - 1.8” diameter opening, max flow 75 gph, max head 8’.

• Magnetic sensor mounting bracket for up to ½” glass.

• 10-foot silicone tubing with siphon-breaker and splash-free tube holder with securing lock-nuts.

• REEF-SPEC titanium RO/seawater leak detector with an audible alarm.

• On-line temperature sensor ±0.1° precision.

• Detailed top-off and temperature logs.

• RO reservoir volume monitor.

• Integration with ReefBeat’s Feed / Maintenance / Emergency Quick Actions.

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.

Availability: Translation missing: en.general.icons.icon_check_circle icon 2 in stock, ready to be shipped