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Customer Reviews

See what our community has to say about using Sutro...

  • "It works. It keeps me on top of my pool, which I think results in less chemicals. It's easy!" - Bill Moreland

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  • "Saves me trips to get water checked and also let’s me tell my daughter who lives near by what needs to be done when I’m away, so the pool doesn’t get out of wack when I’m not there." - Ric

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  • "Accurate and daily measurements, much better than anything I can accomplish with a test strip." Miguel L

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Sutro Is The Future Of Pool Chemistry Control

Our device works with saltwater, chlorine, mineral sanitizers, and bromine pools and spas.

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The world's leading water testing device. The easiest way to actually measure your pool chemistry and keep your pool and spa crystal clear.