Red Sea 3-in-1 ReefATO + ATO Auto Top Off System for Aquarium | Water On Floor Alarm | App Controled with Fish Tank Temperature Probe

I absolutely love this ATO it was super easy to set up the wire less functions worked flawlessly and this by far had the best associated app i i found. However what is not clearly explained on the box or in the instructions is that this does not work in fresh water, the sensors need salt or sea water for the proper conductivity to accurately measure the water level , i found out after setting it up , installing the app mounting the control box, sensor control and the pump into the reservoir running it and having the pump time out and the app tell me that the water was still low when i could see that it was where i set it and still showing low when i submerged the sensor, this is when i went on Red Seas site and discovered that it does not work for Fresh water. So i had to send it back...If you have a REEF tank I highly recommend this , if you have fresh water PASS. Red Sea PLEASE make a sensor for fresh water and I will definitely buy this again

O sensor não funciona. Simplesmente ele fica sempre abaixo do nível. Muito caro e não entrega o que promete e agora estou com produto ruim em mãos e não sei como resolver o problema.

Another great addition to my Red Sea setup, pump runs quiet and flawlessly and helped alert me to a faulty temperature sensor on another part of my system. I like the fact that it can be calibrated and will let you know how much water you have remaining.

Works great

Why did you pick this product vs others?: Do not buy. Have had 2 of these and the level sensor has gone bad on both, not replacing it again. It's just an expensive thermometer now.