High-precision sensor and automatic temperature compensation technology are used to accurately measure conductivity (0.00–200.0 mS/cm), TDS, salinity and resistivity, and support 1-5 point calibration and multi-electrode constant adaptation. IP67 waterproof design, lightweight and portable, suitable for water quality monitoring, environmental survey, industrial process control and agricultural irrigation management. Built-in 200 sets of data storage and USB export function, equipped with a large-screen backlight display, it is easy to operate, and is ideal for on-site rapid detection and laboratory analysis.