Probest Intelligent Technology Co., Ltd. products

PFDO-700 Fluorescence optical DO sensor Dissolved Oxygen meter Online water analysis. PFDO-700 Dissolved Oxygen analyzer adopts fluorescence method to measure dissolved oxygen.The cap of the sensor is coated with a luminescent material. Blue light from an LED illuminates the luminescent chemical. The luminescent chemical instantly becomes excited and releases red light. The time and intensity of red light are inversely proportional to the concentration of oxygen molecules, So the concentration of oxygen molecules is calculated.