The ReefATO+ 3 in 1
This exceptionally reliable autofill system includes a highly accurate temperature monitor as well as an external leak detector and comes with a smart controller that connects it to the ReefBeat ecosystem.
The ReefATO+ features a solid-state water level sensor with a set of titanium probes that indicate whether the water is above, below, or at the desired level. This comes with an extra-quiet microprocessor-controlled pump and multiple safety features, including an automatic shut-off mechanism if the pump runs too long or runs dry.
Each fill is carried out in a precise 3mm band, keeping the water volume and salinity nice and stable. Additionally, higher level backup probes only respond when the ATO pump is turned on, so routine water fluctuations, such as when using roller filters or turning off the ATO pump return, 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 comprehensive log and high/low temperature notifications.
The ReefATO+ is part of the ReefBeat ecosystem, so it has many smart features such as disabling auto-fill during maintenance work and water changes or stopping ReefRun pumps if a leak is detected.
Owners of existing Red Sea REEFER systems can purchase a dedicated ReefATO+ upgrade kit (at a discounted price), which immediately replaces the standard gravity-fed float valve system.
Clever. On. Calm.
The ReefATO+ is designed to maintain stable salinity and water volume in a reef aquarium by automatically replenishing water lost due to evaporation. Additionally, the ReefATO+ provides two other critical aquarium health indicators: a comprehensive online digital temperature monitor and a leak detector.
On.
L-proof water level sensor (solid-state EC technology) with integrated safety shut-off. Automatic shutdown if sensor is not connected, pump runs much longer than normal, RO tank runs out of water, or leak detected.
ReefATO+ Features:
• Fault-proof (solid state) water level sensor with built-in safety shut-off.
• Quiet variable flow ATO pump 12 VDC (6 - 10 w) - 1.8 in. diameter opening, max. flow. 75 gph, max head 8 ft.
• Magnetic sensor mounting bracket for glass up to ½”.
• 10-foot silicone tube with siphon breaker and splash-proof tube holder with mounting lock nuts.
• REEF-SPEC titanium RO/seawater leak detector with audible alarm.
• Online temperature sensor accuracy ±0.1°.
• Detailed fill and temperature logs.
• Reverse osmosis tank volume monitor.
• Integration with ReefBeat Power/Maintenance/Emergency Quick Actions.
Complete installation kit
• Sensor holder and magnetic corner mounting bracket for 12 mm ½” glass.
• 3M /10′ – 1.5mm / 1/16″ silicone tube thickness ID 5mm / 0.2″.
• Quiet flow – Tube holder, clips on glass 4 – 12 mm / ½”.
• Siphon breaker.

https://redseafish.com/smart-hardware/reefato_plus/