Abstract: A system used to detect and communicate information regarding leaks in water systems at a source. The system includes a power source, a processor, a flow sensor, a radio, and an energy-harvesting turbine. The flow sensor detects and measures fluid flow coming from the water supply line into the tank or other device traditionally connected to pipes. The radio then communicates and relays the measured fluid flow information to a wireless router or gateway using any variety of custom or standard wireless protocols.