Barebottomcorals_Ed December 10, 2010 Share December 10, 2010 can i add another PH probe to a stock apex or do i need a PM1 expansion? Adding a calcium reactor to my system and need a Ph probe for Reactor..LMK if anyone else is doing this and how is it working out? Link to comment Share on other sites More sharing options...
Brian Ward December 10, 2010 Share December 10, 2010 On the old model you could use the ORP probe connection for a 2nd pH probe. I assume they continued that capability. Link to comment Share on other sites More sharing options...
Chad December 10, 2010 Share December 10, 2010 Although I cannot comment as to the actual implementation since I dont have an apex (just significant research), this link states on page 17 (also seems to be pretty useful as to the setup and capabilities of the apex). You can add a second pH probe or an ORP probe as part of the base control module (the Apex Lite does not permit this third probe). Link to comment Share on other sites More sharing options...
Barebottomcorals_Ed December 10, 2010 Author Share December 10, 2010 Cool..thanks for the help! Link to comment Share on other sites More sharing options...
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