Yokogawa's SC25V pH Sensor
SC25V high-accuracy, 12-mm, pH sensor integrates multiple measuring elements in a single package, including a built-in temperature sensor and liquid earth. It has a pH range from zero to 14 pH, and handles pressures up to 10 bar. It has an operating temperature range from -10 °C to +80 °C. The high-temperature/alkaline version has a temperature range of +15 °C to +130 °C.