@JohnQPublic1917, exactly. with this system you can program a lot, almost anything you want, You can add sensors detectors, flood probes, smoke detector, peristaltic pumps, solenoids, waterpumps... It handles 4 power outputs you can program individually. You can have the tank manager with all probes (with more outputs for small devices) with it or the soil manager. And they have a great team. You still have to calculate your EC yourself and this is not on cellphone, though (with so many options you would need quite a big screen anyway). There are other systems but this one is very customizable and extremely flexible to your needs and it's reliable,it works very well and professionnals use it. It's called Grolab.
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