E e55driver New member Feb 24, 2016 #1 Does GHL still make a PH redox card? I want to run multiple PH and redox probes.
Vinny@GHLUSA New member Feb 24, 2016 #2 Yes, these cards are still available. PL-0006 PLM-pH-Redox (1 port for pH and 1 port for Redox)
