499DO dissolved oxygen sensor

499ADO model sensor is designed for constant determination of dissolved oxygen (measurement interval: 0-20 ppm.) Main application area — aeration tanks at municipal water treatment plants. 499ADO model is an amperometric sensors coved with membrane. Sensor consists of gas-permeable membrane extended on a golden cathode. Internal circuit is closed on a silver anode and electrolyte solution. 499ADO model sensor is supplied with watertight Variopol (VP) socket.