Smart ATO Automatic Top Off System by Coralvue
The Smart ATO is a unique Auto Top Off system with a patent pending contactless digital sensor that monitors and automates refilling evaporated water. Best of all it is ver easy to install and contains no moving parts that can Integrated with AFS (Auto Feedback Security) technology which provides real-time fail safe protection against failure. You simply move the outside controller to adjust your sump to a desired water level. Its that easy!
Impossibly Small & CompactContactless Optical Water Level SensorNO MOVING PARTS!ZERO CHANCE OF LEAKING VOLTAGE Smart AFS(Auto Feedback Security) TechnologyVery Easy SetupSafely keep water & salinity levels (in Marine Aquariums) stableAdapts to most aquarium/sumps with walls up to 1/2inch2 year Warranty
Mounts to Clear Glass or Acrylic sumpsMax wall thickness: 1/2 inch (12.7mm)Max distance for sensor: 1 inch (25.4mm)Everything you need is includedController/Sensor, Power Adapter, DC brushless pump capable of pumping to a height of ~6.5 feet and a maximum flow rate of ~74 gph, 6.5' of Water Tubing with Universal Holder.