Fzone Aquarium ATO Auto Top Off Refilling System with Dual Optical Sensor for Both Reef and Fresh Tank （360P)

Small in size; install in a compact space, install in both rimed & rimless aquariums or sumps. ATO is nano at only 0.7 inches.

Includes <1mm dual precision optical sensors, watches the water level in real time, ensures the aquariums water fluctuation is less than 0.6 centimeters.

New technologies that allow the ATO to be more reliable; EFTT(Extened-Filling-Time Technology), AFT(Anti-fluctuation Technology) techology, & upgraded QST 2.0 (Quick-Security Technology). EFTT can recognize your aquariums size & will dertimine how long it takes to fill to the desired level. QST alerts you in real-time when the ato is finished & prevents over filling. AFT measures the water level & ensures the ATO doesn't activate the pump unnecessarily.

QST 2.0 provides real-time protection against overfilling & won't allow the pump to run dry. The ATO controller will give a visual alert & stop the pump immediately when it senses a refilling time more than 6 times longer than the time calcualted by EFTT. QST will detect malfunctions of the sensor, controller or if you have a empty reservoir. Version 2.0 includes new technology making our ATO’s the most safe option.

All accessories included in the package. Strong magnets can support aquarium wall thickness up to 0.78 inches (20mm). Check valve prevents backflow & will not drain your main display. 74 gallon per hour water pump will lift water up to 2 meters ensuring water delivery to even the biggest aquariums.

Customer Service Team：Fzone will offer a round-the-clock service, and you can reach out to us at any time for any product-related concerns.