The ZW-BGA-PR fluorescence method blue-green algae sensor adopts high-precision fluorescence principle, which can monitor the concentration of algae in water in real time (0-300Kcells/mL), with a reading accuracy of ± 3% and rapid response (T90<30s). Equipped with automatic temperature compensation and RS485 Modbus output, supports two-point calibration, and does not require frequent cleaning. 316L stainless steel material is corrosion-resistant and suitable for fields such as drinking water, surface water, and aquaculture.