It is a universal conductivity measuring cell designed for precise and reliable measurements in both laboratory and field applications. Utilizing a four-electrode system with graphite electrodes, it effectively eliminates common measurement errors caused by cable influences, polarization effects, or changes in the electrical boundary field. The integrated temperature sensor ensures accurate compensation, enhancing measurement precision. With a 1.5-meter cable and waterproof plug, this sensor offers flexibility and durability for various aqueous solution analyses.