danksmoker77
Well-Known Member
Hey fellas ive began automating my grow room got my analog input card workin on my slc 5/04 PLC. I use this to read in an analog voltage for temperature and co2 through some electronics. I want to do the same measuring ph. Does anyone know a good cheap ph transmitter that outputs either 4-20mA or 0-10vdc. I want to use this and then add some dosing pumps to add the ph up or down. and to monitor levels. Hope somebody has some good ideas.