Anyone ever purchase one of these "cheaper" ebay probes as a replacement for your ph monitor or ph controller probe? Looking for feedback.....
http://www.ebay.com/itm/Replacement...265?pt=LH_DefaultDomain_2&hash=item2a23071d61
http://www.ebay.com/itm/Replacement...265?pt=LH_DefaultDomain_2&hash=item2a23071d61