DIGITEN Auto Top Off System Aquarium ATO Water Filler System Smart ATO Refiller Fish Tank Automatic Water Level Controller Coral Reef Tank Automatic Top Off

【Easy to Install】The aquarium auto top off system is extremely to install and maintain. Easily install on terrarium with a wall thickness of no more than 5/8 inches (16 mm). The range from the top of the tank to the water level is 0-6.7 inches (0-17 cm). The durable PC material adjustable bracket can be fixed in the terrarium according to different water levels. 【Integrated Design Without Setting】Plug and play, easy operation. Anti-overflow protection design and will automatically cut off power when water level is too high. 【Double Protection】Accurate dual-float water level sensor can provide over-filling protection. When the water level drops below the lowest water level, the power supply will be activated and the water pump will work automatically and shut down when the water level reaches the highest water level. When the first float fails, the second float will work. 【Relay Control】The controller of the ato system integrates a relay and a stable circuit to protect the water pump and the water level switch more effectively. 【Widely Applications】It is widely used in various aquariums, sump, fish tanks, coral reef tanks, etc. Rest assured your product is covered by one-year warranty.