From what I've read, and I'm no expert, the unit is $275 plus ≈$50/yr for the anaual sensor/battery replacement. That's a bit much I think considering it only measures pH and Chlorine. It doesn't differentiate between FC & TC.
I can get more measurements manually in five minutes for much less money. IMHO, it's not really worth it.
My 2¢ FWIW.
Mike
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