This project presents the development and design of a low-cost system for real-time monitoring of water quality in IOT (the Internet of Things), a solution to the problems of poor real-time performance, secondary contamination, excessive cost, and other factors. The water's physical and chemical characteristics may be determined with the help of the system's many sensors. It is possible to gauge water characteristics including temperature, acidity, and clarity. The sensor readings are sent to the central controller for analysis. As a central controller, the Arduino model is a viable option. The system effectively monitors water quality data, lessens the effects of contamination, and satisfies smart and efficient water quality standards.