Aquarium ATO Auto Top Off Refilling System with Dual Optical Sensor for Both Reef and Fresh Tank （360P)

6 Month suspicious Sensor FAILURE?….CUSTOMER Service Assisted me professionally and want to say thank you for making action a priority to a long term loyal customer!Cheryl made sure to send a replacement immediately! Even when I’ve had this for 6 months (again that’s more than 30 days!) And it was great! Cuz I’m going on vacation in 2 DAYS! And have this to help me not to even Worry about the tanks water level!Thank you to Fzone and thank you to Cheryl!And I hope you guys received the failure sensor I am sending you guys back for improving this suspicious sensor failure as well as getting to the bottom of fixing whatever components failed! And making this product on indestructible!

Works perfectly and looks very sleek/nice. I was topping off my 10 gallon every day before and now it just does it for me which is super convenient! Magnet is very strong so the sensor is secure. even with the small amount of surface movement i have it doesnt throw off the calibration. Pro Tip: the first time you prime it if its a saltwater tank and already at the correct salinity just have the pump in saltwater when it primes and then after that move the pump into the rodi water. that way it knows the tank size and you dont have to worry about it lowering the salinity

THE LIGHT BLINKS WHEN THE WATER LEVEL DROPS BUT THE PUMP WONT TURN ON UNLESS I UNPULG THE POWER AND PLUG IT BACK ON. THEN IT STARTS TO PUMP THE WATER SO THE SENSOR WORKS BUT NOT THE PUMP WHICH DEFIES THE PURPOSE . TRIED CONTACTING THE COMPANY BUT MESSAGE WONT GO THROUGH

This thing is great. Certainly more reliable than my $200 red sea ATO. I have these setup on a couple of my tanks with Govee smart plugs that trigger power on/off 3x a day for 1min as an added redundancy. The sensor is pretty reliable. The pump is small but powerful. I especially like the size of the pump as it’s easy to fit into a few different ATO containers. It keeps the couple of tanks that I have topped off nicely and I haven’t had any overfill issues in the year+ that I’ve had them setup. The magnet to attach the sensor to the glass is strong enough. Super glueing or zip tie securing the sensor to the glass wouldn’t be a bad idea. It’s significantly quieter than my Red Sea ATO, a quarter of the price, and far less bulky than other units.The bad:As other reviewers have stated, the pump or brains of this ATO sometimes forgets to sense or pump water when the pump is kept plugged into constant electrical power. That’s why I recommend having this pump plugged into a smart plug that periodically triggers power on/off to reset the sensor and also to build in a redundancy in the case of sensor failure.

Product worked well and was quiet and easy to install

Why did you pick this product vs others?:Very good product. Worth the money

Works well but installation instructions werent clear and vague. I installed it wrong initially according to the pictures.

Please thanks for this ATo is the best i am super happy right now, i will update in the future but now the best, i got a 75 gl freshwater tank and make me happy now