This soil moisture sensor system consists of an anti-corrosive dual-pronged probe connected to an LM393 processing module. It measures volumetric water content in soil by reading electrical resistance between the probe leads—resistance drops as moisture increases. The module provides dual outputs: an analog voltage pin for real-time moisture level monitoring and a digital pin with adjustable threshold for triggering relays. Essential for smart agriculture rigs, automated irrigation control systems, and plant care monitors.