Industrial Online pH Free Residual Chlorine Meter Controller with Sensor

Industrial Online pH Free Residual Chlorine Meter Controller with Sensor. Multi-Parameter Display: Simultaneously displays residual chlorine, hypochlorite, pH, temperature, and output current. Advanced Polarographic Technology: Ensures stability, reliability, and accuracy for long-term instrument operation. Optional RS485 Communication: Supports Modbus protocol with arbitrary 4-20mA current output setting. Power Failure Protection: Core devices and settings protected for over 10 years. CE Certified: Meets CE safety and quality standards for medical and water applications. Factory Setting Recovery: Includes slope correction and manual/automatic compensation functions.