Christopher Melton

I thought the Sutro could be an early warning sign for low chlorine or sudden pH imbalances. Sutro uses a cartridge with capacity for about 90 tests (a mont worth). Their is a unit floating in my pool with the cartridge chemicals that sends messages to a hub, which in term sends to their server, which finally sends me updates. The Sutro sends a reading to my iPhone every 8 hours (that is the most frequent it can do) with FC, pH and TA. Unfortunately, the FC maximum reading is 5+