C
cocoon
Guest

ph metre diy
Hallo Forum,
I would like to apologize for my a little bad one English first. I would like to build a pH-meter for me. the pH- meter shall serve for the co2 supply for an aquarium. many thank for your help.
Hallo Forum,
I would like to apologize for my a little bad one English first. I would like to build a pH-meter for me. the pH- meter shall serve for the co2 supply for an aquarium. many thank for your help.