Sutro Water Monitoring System For Bromine Hot Tub

Sutro will help you keep your bromine level perfect in your hot tub! Sutro will help you keep your bromine level perfect in your hot tub! It's the simple, safe, and seamless way to measure, monitor, and get treatment recommendations to keep your water safe. The Sutro Box comes with:  (1) Sutro Monitor (this floats in your pool or spa) (1) Water test cartridge (measures pH, free chlorine (and bromine for spas), and alkalinity). It also works for saltwater pools.  (2) Rechargeable Li-Ion batteries (1) Hub and Charger base unit (this goes in your house to extend the Sutro's range) (1) US-110V adapter The Sutro application is available both on iOS and Android. You can download either of them by going to this page.