Ningde Monitoring Cases of Black & Smelly River Water In this project, water is pumped to the shore, and the shore station is used to monitor water quality parameters. The total phosphorus and ammonia nitrogen adopts PROBEST PCM300-TP and PCM300-NH3N total phosphorus and ammonia nitrogen water quality online automatic monitor. By using the colorimetric monitoring principle, the total phosphorus and ammonia nitrogen measurement values are more accurate and stable. The key indicators of black and odorous water, such as transparency, dissolved oxygen, ORP and SS, are monitored in real time through the multi-parameter controller of MUC-200 split multi-parameter controller, which improves the overall integration of the system and reduces the cost and operation of the instrument, maintenance costs.