GSV’s Analytical Instruments and Sensors measure critical process parameters such as pH/ORP and conductivity in a wide variety of industrial applications for reliable process monitoring and control. GSV offers a broad portfolio of analytical instruments and sensors to help run production smoothly, efficiently and safely, allowing users to optimize costs. Online LED PH Meters, Online LED Conductivity Indicators, Online LED ORP Indicator, Desktop pH Indicators, Desktop Conductivity Meter, Desktop ORP Indicators are some of the instruments used for water quality measurement.