The JBJ Nano ATO is the perfect upgrade for smaller aquariums. JBJ`s most reliable auto-top-off system has been reimagined with dual optical level-sensors for ultimate precision. Enjoy the compact versatility of a digital sensor without compromising the security of overfilling your tank.

Installation is quicker than ever, and everything you need to get started is included in the box.

Optically Accurate

The included protective cover prevents tank inhabitants from covering the optical sensor. Additionally the protective cover reduces sudden changes in light or water surface disruption from affecting the sensor. This ensures accurate water level measurements every time.

The complete waterproof design allows the sensor to be mounted virtually anywhere.

Specifications:

• Model: ATO-20
• Dual optical level sensors
• Pump dimensions: 1.7"L x 1"W x 1.45"H
• Pump outlet dimension: 1/4"
• Pump flow rate: 74 gph (280 lph)
• Head pressure: 7.2` max
• Magnetically secures on up to 1/2" (15 mm) thick panels

Includes:

• Nano ATO optical sensor
• JT-160 DC Pump
• Optical sensor guard
• 7` hosing w/ mounting bracket
• Power supply