AutoAqua Smart ATO Duo

AutoAqua Smart ATO Duo The Smart ATO Duo is a unique automatic top-off system featuring two contactless digital sensors that monitor and automate the refilling of evaporated water in your aquarium. The next generation of the patented Square Dual-Optical Sensor significantly reduces the chance of false detection due to water drops on the sensor. Key Features Dual non-contact optical sensors — primary ATO sensor plus a fail-safe sensor for redundant protection QST (Quick Security Technology) — detects sensor failure, pump failure, and empty reservoir in real time, preventing overfilling without any complicated settings Audible alarm & LED indicator — instant visual and audio feedback on system status Magnet mount — attaches to glass or acrylic walls; no drilling required Built-in DC pump — quiet and energy efficient Simple setup — no complicated programming; self-calibrates on first fill cycle Specifications Power Input: 100–240V AC 50/60Hz Pump Power: 4.5W @ DC 12V Flow Rate: 280 l/h (74 gph) Max pump head: 250 cm (8.2 ft) Sensor cable length: 180 cm Max glass thickness (magnet): 12.7 mm Max sensor observation distance: 25.4 mm Reservoir capacity: up to 80 L What's in the Box Smart ATO Duo controller unit DC refill pump with tubing Primary optical level sensor (magnet mount) Fail-safe sensor Power adapter