Comprehensive Inspection and Analysis of Water Quality explores a modern approach to evaluating water safety and usability using advanced sensor-based and IoT-driven systems. Centered around the ESP32 microcontroller, this book presents a practical and scalable solution for real-time monitoring of crucial water quality parameters such as pH, turbidity, temperature, and chlorine—while intentionally excluding Total Dissolved Solids (TDS) to streamline sensor accuracy and system efficiency. Structured chapter-wise, the book covers system architecture, sensor calibration, data acquisition, and cloud-based visualization, providing detailed insights into integrating low-cost hardware with intelligent software for precise, continuous water analysis.