Apex gold on sale

Is the ORP, Salinity and Lab grade probes worth the extra money over the standard?


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I don't see it. I have a refractometer for salinity, a huge sump with ato for salinity stability, and I'm not sure what I would do with the ORP reading? I'm looking at getting the standard apex with lab grade for around $200 less than the sale price of gold. That's just me, and I may be missing something, but not worth it for me personally.
 
I feel the exact same way but I'm only getting back into reefing and wanted to hear from the more experienced their thoughts. Thanks


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the lab grade probes are supposed to last longer than the regular ones, so you replace them less. I don't know how much longer they last and if it makes it worth it.

to me, the value of the salinity probe is not measuring a single salinity, its the constant measuring of salinity and alerts if it goes out of your specified range. say your ato dumps a ton of RO by some freak accident, the probe should detect your salinity drop and you can program the apex to turn off the ATO.

ORP, idk, it's for people using ozone or something, I haven't really looked it up.
 
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