Soil moisture monitoring is critical for managing water resources in an efficient manner. This applies to both irrigated and rainfed cropping systems. Water is increasingly becoming the most limiting resource needed to meet the food and fiber needs of a growing and more affluent population. Soil moisture monitoring can e.g. be used as a tool to assist irrigation scheduling. Irrigation management gives better crops, using fewer inputs, which increases profitability. Soil moisture sensors help with irrigation decisions.