GrowDirector ORP SensorAn ORP sensor measures the oxidation reduction potential (ORP) of the nutrient solution used to grow plants. It helps ensure that the solution has the correct balance of oxidizing and reducing agents required for optimal plant growth and health. ORP sensors are essential tool for hydroponic gardeners as they allow for accurate and precise monitoring of the nutrient solutions ORP levels, which can directly affect plant growth and yield. With an ORP
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