Abstract: A method for real time monitoring agricultural ecosystems is described in this paper. Soil moisture content and microclimate condition are regarded as the essential parameters in various agricultural activities such as irrigation scheduling and nutrient management. For the demand of real time monitoring soil moisture content and microclimate conditions at fertigation cultivation field, this study presents the hardware development of monitoring device that contained a microcontroller, wireless communication module, two soil moisture sensors, temperature and humidity sensors. Soil moisture sensor specifically calibrated for growing medium used in the field provides volumetric water content reading during irrigation intervals.