The pH 600 – 1 series of pH Controller and Transmitter provides a reliable method of Monitoring, Controlling & Transmitting 4 – 20mA / RS 485 MODBUS RTU communication for interfacing to PLC, Data logger, HMI, etc.,. This product is suitable to measure pH in water treatment, Electrolytic water cleaning, etc.,. in chemical industries, food process, waste water treatment, electroplating industries, textile industries & neutralization process, etc.,