ajhudson15
Valuable Member
I currently have the p4e with the ph and temp probe. I am looking to buy an expansion card for another ph since I am setting up my calcium reactor. I thought now might be a good time to go ahead and buy the expansion card that also allows me to add the salinity probe. My question is. what is the difference between these 3.
PLM-CondS-pH
PLM-CondF-pH
PLM-pH/Redox-Cond
The top 2 look like they do conductivity but idk what the difference is and they are the same price as buying just a ph card and then the 3rd one is $150. Can anything think of a different card I may need for something else other than the salinity probe as I can do that myself every few days and add a spot for something else that may come up later.
PLM-CondS-pH
PLM-CondF-pH
PLM-pH/Redox-Cond
The top 2 look like they do conductivity but idk what the difference is and they are the same price as buying just a ph card and then the 3rd one is $150. Can anything think of a different card I may need for something else other than the salinity probe as I can do that myself every few days and add a spot for something else that may come up later.
