The SENSOREX S222CD pH Electrode is a glass body combination pH electrode with a double junction reference, ideal for laboratory use. It has a pH range of 0-14 pH, a temperature range of 0-80°C, and 12/120 mm dimensions. The S222CD features a spherical, anti-clogging pH bulb and quick disconnect DIN connector. It has a fast response time and is compatible with standard pH meters. The electrode requires storage solution and regular calibration for optimal performance.