Smart ATO Nano HOB – automatic top-up
Automatic top-off unit with an optical level sensor for aquariums, sumps and reservoirs. The pump delivers…
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Find a productProduct description
The Smart ATO Nano is an automatic top-off system for hobbyists who keep aquariums or sumps and want to stop manually refilling evaporated water. It works with a reservoir of fresh water and an optical sensor that controls the pump, so the level is restored without a float valve that could stick open.
Why it matters
- Optical sensor with two eyes: the sensor uses two optical points for redundant level monitoring and is attached to the glass with a strong magnet, without tools.
- Anti-gravity outlet tip: the outlet passes water only while the pump runs, which prevents gravity drainage. Its limit is 60 cm of water column, so the tip must sit no lower than 60 cm below the glass edge.
- Prefilter: a filter placed before the pump keeps debris out of the pump and the rest of the line.
- Cascade-style controller housing: the control unit hangs on the rim of the glass like a cascade filter, and the excess sensor cable can be stored inside the housing.
- QST safety logic: each subsequent fill cannot exceed six times the duration of the first fill (10 s first fill, 60 s limit afterwards). This limits overfilling if the sensor fails or gets dirty and protects the pump from running dry when the reserve is empty.
Specifications
- Model: AA SATO-270D
- Brand: AutoAqua
- EAN: 4714041212341
- Pump flow rate: 30 l/h
- Maximum suction head: 200 cm
- Maximum glass thickness: 12.7 mm
- Capacity: 30 l
- Weight: 0.5 kg
What it works with
The unit is intended for topping up aquariums, sumps, buckets and similar vessels from a separate reservoir. The 30 l/h flow rate and the 60 cm anti-gravity limit determine where the outlet can be placed relative to the water surface. Check the glass thickness against the 12.7 mm maximum before installing the sensor.
Technical specification
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Frequently asked questions
The optical sensor works with glass up to 12.7 mm thick. It is attached with a strong magnet, so it can be placed at any point on the tank or sump wall.
The QST safety program limits refills: if the first top-up lasts 10 seconds, no later top-up can run longer than 60 seconds. This also protects the pump from running dry when the reserve container is empty.
The special end fitting stops gravity dripping and only lets water through while the pump is running. It can withstand up to 60 cm of water column in the hose, so it must not be placed more than 60 cm below the edge of the glass.
The pump delivers 30 l/h and has a suction column of 200 cm. Those are the figures given in the technical data.
No tools are required. The control unit hangs on the edge of the tank like a cascade filter, and extra cable between the sensor and the unit can be hidden inside that housing.
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Payment methods
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