Hey Everyone, Im working on a project/hobby making a hydroponic feed controller using a omron PLC. I got the PLC through work and it has a build in AD. I dont know much about programming but the guys at work can help me with that. What I was wondering is if there is a conductivity meter that can me connected to the AD of the PLC to control the dosing of the feed, preferably a DIN rail mounted solution. Hope someone can help.