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Enjoy a precise water level and peace of mind with the JBJ Dual Sensor auto top off system. With the included sensor cover you never have to worry about tank inhabitants causing false readings again, as an added bonus this cover will prevent sudden surface agitation from causing fluctuating water levels. Everything included, just install and enjoy consistent water and salinity levels. The JBJ Nano ATO is the perfect upgrade for your aquarium. 



  • Power Input - 120V AC, 60Hz
  • DC Pump Max Head - 7.2 feet
  • Pump Flow Rate - 74 gph
  • Max Mounting Tank Thickness - 0.5"
  • Pump Dimensions - 1.7"L x 1" W x 1.45"H
  • Warranty - 12 Months
  • Water level detection - Optical


What's Included?

1x Dual Optical Sensor

7' Tubing with Mounting Bracket

1x Optical Sensor Gaurd

1x Power Supply

1x Pump

Dual Sensor Nano Auto Top Off - JBJ

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