We have an EC III Pro controller on approximately 200 acres drip irrigation field which is divided into 100 acres of corn and 100 acres of cotton. the controller is very user friendly from the panel or from the phone app. The irrigation settings are very flexible and accurate.This controller also keeps up with the amount of fertilizer in the tank. the controller starts and stops our reservoir pump which supplies water to tour system when the levels require adjustments. The EC III controller allows us to apply the needed amounts [of fertilizer] in a timely manner. At this time the crops are looking outstanding and have a promise for a very good turnout at harvest.
We are extremely happy with the performance of this controller. It has saved us many hours and steps of work. We truly belive this system and controller have taken irrigation to a new level. We would highly recommend this controller for any drip irrigation system.