For RS485 pH Sensor, everyone has different special concerns about it, and what we do is to maximize the product requirements of each customer, so the quality of our RS485 pH Sensor has been well received by many customers and enjoyed a good reputation in many countries. Probest Intelligent Tech.RS485 pH Sensor have characteristic design & practical performance & competitive price, for more information on the RS485 pH Sensor, please feel free to contact us.