The working principle of this sensor is usually based on the fluorescence method. When a certain wavelength of excitation light is used to illuminate the water body, the pigment in the blue-green algae will be excited to a high energy state. When it returns to the ground state from the high energy state, it will emit fluorescence greater than the excitation wavelength, and the excited fluorescence intensity is related to the concentration of blue-green algae, By detecting this fluorescence intensity, the content of blue-green algae in the water body can be indirectly determined. It has a self-cleaning function to remove attachments in water samples, maintenance-free measurement, low detection limit, good long-term stability,ultra-bright LED light source, improve signal-to-noise ratio, enhance stability, plug and play, and no calibration is reguired for the first use.

Application fields: aquaculture, environmental monitoring, drinking water source monitoring.