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Fzone Aquarium ATO Auto Top Off Refilling System with Pump, Aquarium Water Refiller with Dual Optical Sensor, Upgraded QST Tech and Smart ETFT Algorithm for Both Reef and Plant Tank


Compact size – the entire optical sensor unit ONLY 0.8 inches diameter. The unit works on rimmed and rimless tanks, and as well as sump tanks. The whole machine is designed with quick-plug module, which is free of setup and super simple to install. The small size is not only beautiful, but also suitable for freshwater and seawater grass tanks of various sizes.
New and Improved Features – Upgraded ETFT (Extended Time Filling Technology), AFT (Anti-fluctuation Technology), and QST 2.0 (Quick Security Technology). With all these new upgrades combined, our ATOs are far superior and safer. ETFT recognizes your tank size after it first initialized. Working alongside the ETFT, the AFT will be able to decide how long it takes to refill your tank without over-filling it when the QST alarm is triggered.
QST 2.0 real-time monitoring – Prevents overfilling and pump dry run. The controller will give a visual alert and stop the pump immediately when it senses a refilling time more than 6 times longer than the time calculated by ETFT. QST can detect a malfunction of the sensor/controller or even an empty reservoir.In version 2.0 we incorporate ETFT feature and not relying on first filling time from version 1. Flooding barely happens when following the instructions carefully.

£69.99

Compact size – the entire optical sensor unit ONLY 0.8 inches diameter. The unit works on rimmed and rimless tanks, and as well as sump tanks. The whole machine is designed with quick-plug module, which is free of setup and super simple to install. The small size is not only beautiful, but also suitable for freshwater and seawater grass tanks of various sizes.
New and Improved Features – Upgraded ETFT (Extended Time Filling Technology), AFT (Anti-fluctuation Technology), and QST 2.0 (Quick Security Technology). With all these new upgrades combined, our ATOs are far superior and safer. ETFT recognizes your tank size after it first initialized. Working alongside the ETFT, the AFT will be able to decide how long it takes to refill your tank without over-filling it when the QST alarm is triggered.
QST 2.0 real-time monitoring – Prevents overfilling and pump dry run. The controller will give a visual alert and stop the pump immediately when it senses a refilling time more than 6 times longer than the time calculated by ETFT. QST can detect a malfunction of the sensor/controller or even an empty reservoir.In version 2.0 we incorporate ETFT feature and not relying on first filling time from version 1. Flooding barely happens when following the instructions carefully.
Dual sensing optical probe-The dual precision optical sensors are 0.1 cm apart, which enables it to monitor the level fluctuation precisely (less than 0.6cm difference). The dual-sensing probe with excellent performance can operate in a completely dark environment, you could use it with confidence!
Everything you need is included in the package – Powerful magnet supports 15mm thick glass wall. Check valve prevents water from back flowing from the tank. Hose holder allows you easily secure the tubing. Powerful 70gph water pump can lift water up to 2 m high.