A Conductivity / TDS / Salinity Tester, offered by National Scientific Corporation, is a compact and precise device designed to measure water quality by testing conductivity, total dissolved solids (TDS), and salinity levels. Widely used in laboratories, aquaculture, agriculture, and water treatment, it ensures accurate monitoring for safe and efficient applications. Equipped with digital displays, user-friendly calibration, and durable sensors, this tester provides quick, reliable results. Portable, efficient, and easy to operate, it supports scientific, industrial, and environmental testing needs.