ATO Auto Top Off System NG11 for Saltwater Aquarium Long Life Design with Dual Optical Sensor for Both Reef and Fresh Tanks

Very gd auto top up for price

Sorry but only 3stars Reason being not a UK plug but quick delivery

Brilliant product

Pros- - Easy setup, well built, different lights recognitions are helpful, price is fair. Cons- - No beep alarm to get your attention for any error. - Water level detection is about half a centimeter before sensor detects the low water level and turn the pump ON to refill, which is very crucial for saltwater tanks if you have skimmer, and roller mates kind of accessories, these equipment needs constant accurate and desired water level all the time, the manufacturer did this delay water detection for longevity of the pump but it has above issue with saltwater tanks i mentioned.

This product works great! It's easy to set up and I no longer need to top off my tank manually which has lead to more stable parameters. The pump is quiet and the sensor is bulky but accurate. No need to spend $$$ on the expensive name brand ATO's.

This automatic water refill system works perfectly. It’s very easy to set up and gives me peace of mind when I travel. It keeps the water level stable and refills automatically when the water evaporates. Very reliable and convenient. I highly recommend it.

Worked fine for a few weeks, I came home on my lunch. Found a house full of smoke and the ato plug shorting out inside and on fire. I have damage to my stand, my tank, and my wall. This has absolutely nothing to do with moisture getting to it. Below my tank is completely dry and I have drain loops in all my cords. I am very lucky I came home when I did or I would need a new house.

Bought this auto top-off for my reef tank last month. It was simple to set up, and the dual optical sensors feel much more reliable than the old float switch I was using. No more worrying about the water level while I'm away for the weekend. For the price, it's been solid and gives me real peace of mind.