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Hinterfeld -Professional Aquarium supplier

Hinterfeld Aquarium Infrared Automatic Easy Refill Top Off System (Smart ATO)


Hinterfeld Aquarium Infrared Automatic Easy Refill Top Off System (Smart ATO)


Product Description

The Hinterfeld Automatic Top Off (ATO) system provides a very reliable way to monitor and replenish the evaporated water in the aquarium. The unique optical sensor switches the water pump with high precision and keeps the water level at an optimal level.

The sensor is a mini optical infrared sensor for extremely precise water level regulation. It frequently checks/refills the water level with a maximum tolerance of 5 mm. This means lesser water fluctuation. The controller of the ATO Refill system has a magnetic mount which enables safe and easy installation in tanks. The built-in alarm provides additional security in your aquarium. The ATO Refill system works with any 12V security voltage.  It is a great companion for your tank especially when you are away for an holiday. 


  • automatically refills evaporated water
  • maintain same water level in your aquarium
  • with optical sensor
  • magnetic mount
  • no cables in the aquarium
  • complete system with pump, sensor, tubing and accessories
  • for any fresh and marine water suitable


  • AC Input: 100-240Vac 50-60Hz
  • DC Pump: Head 6.5ft (200cm), Flow Rate: 74ghp (280lph)
  • Mounts to Glass: Max wall thickness by magnet: 13mm
  • Hose: Length: 2meters, size:7mmx9mm
  • We can supply different power plug for different country

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