DDB-305 portable conductivity meter (hereinafter referred to as the instrument) is an instrument for measuring the conductivity of aqueous solutions in the laboratory. It is widely used in petrochemical industry, biomedicine, sewage treatment, environmental monitoring, mining smelting and other industries, universities and research unit. It can also be used to measure the conductivity of pure or ultra-pure water in electronic semiconductors, nuclear power industry, and power plants if it is equipped with an appropriate constant conductivity electrode.
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