iCare, Smart Water Monitor for Saltwater Pools and Spas

If you have a hot tub you need this

If you own a hot tub, tired of guessing what chemicals to put in, this app is on your phone and it tells you exactly what to add and how much to add. Easiest thing ever. I absolutely would not have a hot tub if I didn't have this available

Icare Pool Water Monitor

A great way to monitor your pool/spa water chemistry and water temperature. I can be away from home and it informs me of the water quality. However, they should increase the warranty to a minimum of 5 years. I had one in the spa that only lasted for 3 1/2 years and it would not recharge. The other one in the pool is 4 1/2 years old and is still working.