Troy, have you any experience with them? Like I say I have one that needs a new probe, I'm just not sure if it's all it's cracked up to be now. I did rely on it as a constant monitor in my old reef and would check my pH daily I'd calibrate it about once a month or so (4-6 Weeks) but I never checked it against a titration kit. I think I'll just stick with the titration kits for now and spend the $50 on something cool.
Doug
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