It uses high-precision four-ring electrode and automatic temperature compensation technology to accurately measure conductivity (0.0–200.0 μS/cm/mS/cm), TDS and salinity, and supports 1–5-point calibration and respond quickly. IP67 waterproof design, lightweight and durable, suitable for rapid outdoor inspection. Equipped with large-screen backlit display, 200 sets of data storage and USB export function, it is simple to operate and widely used in water quality analysis, environmental monitoring, food industry and aquaculture fields. It is an ideal tool for efficient on-site inspection.