The Endress+Hauser Orbisint CPS11D is a digital pH sensor for process and environmental technology. The CPS11D is able to measure reliably in highly alkaline media and in hazardous areas. The CPS11D is designed for low maintenance and a long operating life. The Endress+Hauser CPS11D combines maximum process and data integrity with simple operation, thanks to the Memosens digital technology. It resists corrosion and moisture, enables lab calibration and facilitates predictive maintenance.