PH Meter, Cod Sensor, Water Quality Analyzer manufacturer / supplier in China, offering High Precision Digital Disinfectant Residual Chlorine Sensor with RS485 Output for Water Treatment and Pool Monitoring, ORP, pH, DO, Turbidity, Ammonia-Nitrogen, Residual chlorine, Conductivity, Oil-in-water Sensor/probe/electrode for Water, High-Precision High temperature resistance Turbidity Monitoring with Real-Time Sensing Sensor and so on.