The BH-485-NO3-N is digital online nitrate nitrogen sensor and with RS485 Modbus,it measure the nitrate nitrogen concentration by an ion selective electrode method.BOQU nitrate nitrogen sensor is the right technology for trend measurement directly in the basin. It helps you to increase the efficiency and reduce the energy costs of your aeration processes. The nitrate nitrogen sensor works without reagents saving you even further money. With its robust ion-selective membranes , it eases your maintenance tasks. Thanks to Memosens, BH-485-NO3-N combines maximum process and data integrity with best operating comfort and simplifies predictive maintenance. The BOQU digital nitrate nitrogen sensor is an integrated sensor that is composed of nitrate ion selective electrode, potassium ion (optional), pH electrode and temperature electrode. These parameters can mutually correct and compensate the measured value of nitrate nitrogen, and meanwhile achieve the measurement for multiple parameters