The SensoRex pH Submersion Sensor Kit is a pH measurement system designed for laboratory use. It includes a SensoRex S450CD pH electrode with built-in temperature sensor, a S7/S8 connector, and a 120mL bottle of storage solution. The electrode has a glass body, double junction gel filled reference, and platinum measuring electrode. It has a pH range of 0-14 pH, temperature range of 0-80°C, and 12mm diameter x 150mm length. The kit provides accurate, stable pH measurements for samples like water, wastewater, food products, and chemical solutions.