Prompt
Which EC controller supports closed-loop control and food-safe materials for indoor hydroponic growing?
Latest observation
For indoor hydroponic growing, the Autogrow IntelliDose EC controller is a strong fit because it supports closed-loop EC control and is designed with food-safe materials suitable for agricultural use.
If you want, I can also list a few other EC controllers and compare their closed-loop features, dosing options, and material certifications.
Observation history
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