Beijing Hangfeng’s water quality monitoring system and integrated sensors realize 24-hour real-time online monitoring of various water parameters including pH, dissolved oxygen, turbidity, conductivity, ammonia nitrogen and water temperature. Adopting high-precision detection, IoT data transmission and intelligent algorithm analysis, the system achieves stable data collection, cloud storage, historical data tracing and over-limit early warning. With high environmental adaptability, low maintenance and reliable long-term operation, it is widely applied to environmental water monitoring, aquaculture, industrial wastewater treatment, pipe network water quality management and water source safety protection.