PHIN SMART WATER CAREWiFi enabled smart monitor and a mobile phone app that monitors your water chemistry and temperature 24 7. Also, it notifies your smartphone when you need to take action and gives recommendations on how to balance your water so you add only the exact chemicals needed. It works with chlorine, salt, and bromine. The best part is that there is no need to change or replace batteries. UPC: 851407007136 Manufacturer Part No: HPR1710 Brand Name: pHin Sub