Integrated water-quality monitoring platform with a compact optical sensor measuring 16+ parameters (turbidity, TOC/COD, nitrates, SAC254, CDOM, algal pigments, TLF) delivering lab-grade accuracy at lower cost. LoRa-based self-healing mesh hub, SCADA-compatible interfaces (RS-485, UART, Modbus), and cloud analytics with AI-driven insights and predictive alerts for researchers, water agencies, and industrial users.