HimarineSmart Auto Aqua ATO kit Automatic Top Off System Water Filler Refiller Water Level Controller w/Water Pump for Marine Reef Aquarium Fish Tank (Smart ATO)

Had it on my tank for about a month now. This is a prefect ATOfor a nano tank. The pump is TINY and probably wouldn't be enough for bigger tanks (would say 40g+) before the auto shut off would kick in. Its pretty much just like the JBJ ATO. It is lacking on instructions and doesn't come with a check valve like other full kits do. But it is a full kit that will be up in running in minutes.

Stopped working after 3 months and no support. I paid 45 for it and it’s was a waist of money I surely wouldn’t pay the $69 they are asking now. Spend the extra and go get a better product. It doesn’t chirp or make a noise like it says. It’s a pain to get working again when you unplug to do a water change. No customer support. Oh and the reason it doesn’t work is because the sensor has water in it. Junk product. And I never leave bad reviews on products but this one deserves it. Buyer beware you’ve been warned.

It broke in 3 months and I can't even send the seller an email asking for a replacement. Sucks so please don't waste your money

The product arrived on time and seems like a good solid top off but unfortunately the pump does not work which makes the product unusable.

Pos stopped working 2 days after it was returnable

Stopped working and I receive no communication from the company. Scam!