Abstract: Disclosed is an electronic control assemblage for improving the watering habits to each zone in an irrigated parcel of land. The system consists of a 24 VAC transformer, a control unit, a sprinkler valve, and a probe assemblage for sensing the moisture level in a zone being watered. The electronic control unit is pre-modified to disable power to the sprinkler valve when the moisture level in the zone exceeds a prearranged level as measured by the moisture probe, buried in the zone area. In a preferred embodiment, the probe consists of a cylindrical stainless steel hollow metal shaft, a high purity dissembler metal point, separated with a dielectric material. The shaft, dielectric spacer, and point all have a predetermined length, wall thickness, and grade of material, pre-established to maximize the moisture detection characteristics of the probe. The control unit applies an electrical current along the shaft, energizing the dissembler metal point.