--- product_id: 541632577 title: "Red Sea 3-in-1 ReefATO + ATO Auto Top Off System for Aquarium | Water On Floor Alarm | App Controled with Fish Tank Temperature Probe" brand: "red sea" price: "€ 580.10" currency: EUR in_stock: true category: "Red Sea" url: https://www.desertcart.hr/products/541632577-red-sea-3-in-1-reefato-ato-auto-top-off store_origin: HR region: Croatia --- # 5 titanium probes for precise water level sensing App-controlled monitoring with real-time alerts ±0.1°C accurate integrated temperature sensor Red Sea 3-in-1 ReefATO + ATO Auto Top Off System for Aquarium | Water On Floor Alarm | App Controled with Fish Tank Temperature Probe **Brand:** red sea **Price:** € 580.10 **Availability:** ✅ In Stock ## Summary > 🌊 Elevate your reef game with precision and peace of mind! ## Quick Answers - **What is this?** Red Sea 3-in-1 ReefATO + ATO Auto Top Off System for Aquarium | Water On Floor Alarm | App Controled with Fish Tank Temperature Probe by red sea - **How much does it cost?** € 580.10 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/541632577-red-sea-3-in-1-reefato-ato-auto-top-off) ## Best For - red sea enthusiasts ## Why This Product - Trusted red sea brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Smart App Integration:** Monitor water levels and temperature anytime via ReefBeat app—stay connected, stay ahead. - • **Complete Installation Kit:** Includes sensor holder, magnetic mount, tubing, and siphon breaker for effortless setup. - • **Compact & Quiet Pump Design:** Sleek 4.5cm diameter pump fits standard jerrycans, delivering silent, powerful performance. - • **Fail-Safe Safety Mechanisms:** Backup pump-OFF sensors and leak detector prevent overflows and damage—peace of mind guaranteed. - • **Precision Water Level Control:** Solid-state EC tech with 5 titanium probes ensures fail-proof, ultra-accurate water top-off. ## Overview The Red Sea 3-in-1 ReefATO+ is a cutting-edge auto top-off system designed for reef aquariums, featuring solid-state EC titanium probes for ultra-precise water level detection, an integrated ±0.1°C temperature sensor, and a smart app-controlled interface. Its fail-safe mechanisms include backup sensors and a sensitive leak detector, while the compact, quiet pump fits standard containers. Complete with an installation kit, it ensures effortless, reliable aquarium maintenance for professionals and enthusiasts alike. ## Description The ReefATO+ is an exceptionally reliable auto top-off system that includes a highly accurate temperature monitor plus an external leak detector and is supplied with a smart controller and useful ReefBeat features. It has a unique solid-state level sensor, with five titanium probes that can pinpoint if you are above, below, or at the desired water level, along with backup OFF sensors, a fail-safe mechanism that stops the pump if it is operating for too long, and of course ReefBeat notifications if anything is out of the ordinary. How it Works - The EC technology titanium probes detect the water levels that triggers the pump to be switched on and off to maintain a stable water level and salinity. Complete Installation Kit Sensor holder and magnetic corner mounting bracket for 12mm ½” glass. 3M /10′ – 1.5mm / 1/16″ thick silicone tubing ID 5mm / 0.2″. Silent flow – Tube holder, clips on 4 – 12mm / ½” glass. Siphon Breaker. Safe. l-proof (solid-state EC technology) water level sensor with built-in safety shutoff. Automatic shut-down if the sensor is not connected, if the pump runs significantly longer than normal, if the RO reservoir runs out of water or if a leak is detected. ## Features - Fail-proof (solid-state EC technology) water level sensor, with built-in back-up pump-OFF probes located 2.5cm / 1” above the normal pump-OFF point. - The full array of the Reef-Spec titanium probes gives an indication at all times of the actual water level relative to the sensor, which can be seen on the ReefBeat App at all times. - The temperature sensor integrated in the ATO+ sensor has been pre-calibrated to give an accuracy of ±0.1°. - Safe, Powerful and Quiet ATO Pump - Cylindrical design with diameter of 4.5cm / 1.8” to fit inside standard jerrycans. - Leak Detector The highly sensitive, Reef-Spec leak detector with saltwater resistant titanium probes detects the full range of waters from RODI to seawater. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0CBQ8TXNZ | | Batteries Included | No | | Batteries required | No | | Best Sellers Rank | 295,576 in Pet Supplies ( See Top 100 in Pet Supplies ) 1,062 in Aquarium Water Pumps | | Customer Reviews | 4.2 4.2 out of 5 stars (42) | | Date First Available | 22 July 2023 | | Item Weight | 1.67 kg | | Item model number | AEELDPRE0030000 | | Number of Items | 1 | | Package Dimensions | 25.7 x 17.4 x 12.9 cm; 1.67 kg | | Quantity | 1 | | Specific Uses | Aquarium Maintenance, Aquarium Care | ## Images ![Red Sea 3-in-1 ReefATO + ATO Auto Top Off System for Aquarium | Water On Floor Alarm | App Controled with Fish Tank Temperature Probe - Image 1](https://m.media-amazon.com/images/I/519wNeV-2NL.jpg) ## Frequently Bought Together - Red Sea 3-in-1 ReefATO + ATO Auto Top Off System for Aquarium | Water On Floor Alarm | App Controled with Fish Tank Temperature Probe - FastRack 5 Gallon Hedpak with Cap | BPA-free, Food-Grade, and Leak-Proof | White Water Container | Ideal for brewing, fermentation, or storage --- ## 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/541632577-red-sea-3-in-1-reefato-ato-auto-top-off](https://www.desertcart.hr/products/541632577-red-sea-3-in-1-reefato-ato-auto-top-off) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-10-17*