Hi Fernando,
I am in doubt about the PH, ORP and EC seals, I have read on some topics on the issue of sealing these seals, especially with regard to the EC seal.
My question is: What is the best solution these days?
1) Buy the ATLAS insulation module, link: https://www.atlas-scientific.com/produc ... b-iso.html?
2) I buy Christopher Kindig's PCB and build the board he designed as link: viewtopic.php?p=2406#p2406
3) I saw one of your options regarding a PCB itself at this link: viewtopic.php?f=24&t=372
In the last option, can I see which list of parts to build? Is it still possible to buy this PCB with you?
Still at your option, do I need to buy Serial port expander (https://www.atlas-scientific.com/produc ... ander.html)?