--- product_id: 547811803 title: "K KAMOER New ATO One 2 SE Smart auto top Off System Silent Water Replenisher Water Level Controller for Fish Tank Water Tank Aquarium" brand: "k kamoer" price: "€ 487.01" currency: EUR in_stock: true reviews_count: 5 category: "K Kamoer" url: https://www.desertcart.hr/products/547811803-k-kamoer-new-ato-one-2-se-smart-auto-top store_origin: HR region: Croatia --- # Precision optical sensors Anti-dry submersible pump Overflow & timeout alarms K KAMOER New ATO One 2 SE Smart auto top Off System Silent Water Replenisher Water Level Controller for Fish Tank Water Tank Aquarium **Brand:** k kamoer **Price:** € 487.01 **Availability:** ✅ In Stock ## Summary > 💧 Keep your aquarium flawless with smart, silent, and secure water top-offs! ## Quick Answers - **What is this?** K KAMOER New ATO One 2 SE Smart auto top Off System Silent Water Replenisher Water Level Controller for Fish Tank Water Tank Aquarium by k kamoer - **How much does it cost?** € 487.01 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/547811803-k-kamoer-new-ato-one-2-se-smart-auto-top) ## Best For - k kamoer enthusiasts ## Why This Product - Trusted k kamoer brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Silent Anti-Dry Pump:** Upgraded submersible pump prevents dry running, delivering whisper-quiet, reliable water refills 24/7. - • **Smart Optical Sensing:** Advanced optical sensors ensure ultra-accurate water level detection, eliminating false triggers and protecting your aquatic ecosystem. - • **Real-Time Status Alerts:** Integrated LED indicators and buzzer notify you instantly of refill status, pump issues, or low water in the reservoir. - • **Easy Magnetic Installation:** Magnet-mounted sensors allow effortless setup and precise positioning—no tools, no hassle. - • **Fail-Safe Overflow Protection:** Triple sensor system with real-time overflow alarms keeps your tank safe from costly water damage and mess. ## Overview The K KAMOER New ATO One 2 SE is a cutting-edge automatic water top-off system designed for fish tanks and aquariums. Featuring precision optical sensors, an anti-dry submersible pump, and multi-level safety alarms, it ensures consistent water levels while preventing overflow and pump damage. Easy magnetic installation and real-time alerts make it a must-have for any serious aquarium enthusiast seeking hassle-free maintenance. ## Description The ATO One 2 SE is an intelligent water refill device, an upgrade to the ATO One generation of automatic water refills.The ATO One 2 SE is the standard version with submersible pump for applications where water is replenished using a refill container. It only requires the installation of the sensor and submersible pump. The sensor is fixed with a magnet for easy installation and position adjustment. Equipped with optical level The blue optical level sensor is used to monitor the water level to determine whether the water needs to be refilled, and the red optical level sensor is used to prevent overflow of refilled water. The ATO One 2 SE contains a wealth of status indicators for when the refill is overflowing or time-out. Submersible pumps The ATO One 2 SE has an indicator light and buzzer to alert when the pump is not plugged in or when the refill bucket is out of water. Review: Excelente - una maravilla no ah fallado ni una vez en al menos 6 meses, me parece un poco caro pero bien vale lo que cuesta Review: New and Improved Auto Top Off! - Kamoer’s upgraded ATO 2 SE automatic water refill system is a reliable addition to any home fish tank. It features a timeout alarm to prevent overflow caused by sensor failure, enhancing safety and convenience. ### Key Features: - **Sensors:** - **S1:** Optical level sensor for refill detection. - **S2 (optional):** Refills bucket level sensor. - **S3:** Optical sensor to prevent overflow. - **Indicators:** - **Power Indicator (Green):** Shows system power status. - **Filling Indicator (Blue):** Indicates when refilling is in progress. - **Alarm Indicator (Red):** Alerts users to any issues. ### Upgrades from Previous Model: - **New Anti-Dry Submersible Pump:** Improves reliability and prevents dry runs. - **More Accurate Optical Level Sensor:** Increases responsiveness and reduces faults. ### Installation Tips: - Ensure correct sensor installation as illustrated in the product image. - Maintain a height difference of no more than 1.5 meters between the refill bucket and the master cylinder. - Keep the refill bucket level lower than the master cylinder level when possible to ensure optimal operation. This system is designed for seamless integration into your aquarium setup, offering peace of mind with its advanced safety features. ## Features - Kamoer's new upgraded ATO one 2 se automatic water refill is a great addition to your home fish tank! It has a water refill timeout alarm function to prevent water level overflow due to sensor failure. - This ATO is equipped with: S1: Optical level sensor to identify water refill, S2: Refill bucket level sensor, S3: Optical level sensor to prevent overflow, DC12V: power input, Pump: connect to refill pump or refill solenoid valve, Power: power indicator (green), Filling: refill indicator (blue), Alarm: alarm indicator (red). Power: power indicator (green), Filling: fill indicator (blue), Alarm: alarm indicator (red) - In normal daily use, S3 sensor does not work, S3 is installed in the high used to prevent overflow, to play a role of protection. S1 is is to detect the lowest water level sensor, used to identify the refill water. S2 is the refill bucket level sensor, to prevent the refill bucket shortage of water. - Compared to the old ATO, we have upgraded two parts of this ATO. 1. replaced the original submersible pump with a new anti-dry submersible pump. 2. replaced the new sensor, the new ATO uses a more accurate optical level sensor more responsive, which can effectively reduce the generation of faults. - Please install the sensor correctly (there is a picture illustration in the main picture), ATO may malfunction will not work. The height difference between the refill bucket and the bottom/master cylinder should not exceed 1.5 meters, and the refill bucket level should not be higher than the bottom/master cylinder level as much as possible . ## Technical Specifications | Specification | Value | |---------------|-------| | Manufacturer | Kamoer Fluid Tech (Shanghai) Co., Ltd. | | Country of Origin | USA | | Package Dimensions | 26.01 x 24.69 x 9.91 cm; 762 g | | ASIN | B09QCDFK1V | ## Images ![K KAMOER New ATO One 2 SE Smart auto top Off System Silent Water Replenisher Water Level Controller for Fish Tank Water Tank Aquarium - Image 1](https://m.media-amazon.com/images/I/512MHTulH6L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Excelente *by A***O on 22 July 2022* una maravilla no ah fallado ni una vez en al menos 6 meses, me parece un poco caro pero bien vale lo que cuesta ### ⭐⭐⭐⭐⭐ New and Improved Auto Top Off! *by N***I on 25 October 2024* Kamoer’s upgraded ATO 2 SE automatic water refill system is a reliable addition to any home fish tank. It features a timeout alarm to prevent overflow caused by sensor failure, enhancing safety and convenience. ### Key Features: - **Sensors:** - **S1:** Optical level sensor for refill detection. - **S2 (optional):** Refills bucket level sensor. - **S3:** Optical sensor to prevent overflow. - **Indicators:** - **Power Indicator (Green):** Shows system power status. - **Filling Indicator (Blue):** Indicates when refilling is in progress. - **Alarm Indicator (Red):** Alerts users to any issues. ### Upgrades from Previous Model: - **New Anti-Dry Submersible Pump:** Improves reliability and prevents dry runs. - **More Accurate Optical Level Sensor:** Increases responsiveness and reduces faults. ### Installation Tips: - Ensure correct sensor installation as illustrated in the product image. - Maintain a height difference of no more than 1.5 meters between the refill bucket and the master cylinder. - Keep the refill bucket level lower than the master cylinder level when possible to ensure optimal operation. This system is designed for seamless integration into your aquarium setup, offering peace of mind with its advanced safety features. ### ⭐⭐⭐⭐ Good *by T***R on 12 November 2023* Good ## Frequently Bought Together - Kamoer New ATO One 2 SE Smart auto top Off System Silent Water Replenisher Water Level Controller for Fish Tank Water Tank Aquarium - Inkbird Freshwater Saltwater Aquarium Heater with Probe Thermostat and Thermometer Tropical Fish/Ornamental Shrimp/Reef Tanks 24 Hours Double Time with Day Night Automatic Temperature Controller --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/547811803-k-kamoer-new-ato-one-2-se-smart-auto-top](https://www.desertcart.hr/products/547811803-k-kamoer-new-ato-one-2-se-smart-auto-top) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-04-26*