This product is an industrial grade RS485 magnesium ion sensor that uses Modbus RTU digital communication to achieve online magnesium ion concentration meter function. Featuring high precision and corrosion resistance, it is suitable for monitoring magnesium ions in industrial wastewater, softening boiler water, and real-time analysis of water hardness. As a digital magnesium ion probe, it can be directly connected to the automation control system, which is stable and reliable, meeting the long-term operation and maintenance needs of environmental protection and industrial field for online monitoring of water quality magnesium ions.