The SensoRex pH Electrode pH 16Y965 is a gel-filled combination pH electrode with a glass body and epoxy body gel filled reference. It has a pH range of 0-14 pH with a 12 mm diameter x 120 mm length. This electrode has a BNC connector and 3/4" NPT threads. It is compatible with water, wastewater, food processing, and chemical processing applications. The electrode has a built-in temperature sensor and is ideal for continuous online measurement and monitoring of pH.