While developing the new G 1000 series, the focus was on the essential functions of the measurement technology. The Pure measurement with its focus on precision, speed and reliability, compactly packed enables you to achieve outstanding value for money, made in Germany.The devices convinces beyond that by their ergonomy, dust and water protection according to IP 65/67 and display lighting.The ECO 522 is a universal wide-range conductance meter with robust 2-pole measuring cell for measurements ranging from deionized water (cleaning processes, aquariums) up to sea water with up to 100.0 mS/cm.The ECO 523 is equipped with a stainless steel ultrapure water measuring cell and specializes in high resolution measurement of ultra-water, alcohol, solvents and the like. Resolution is thereby up to 0.001 µS/cm. The measuring devices can be used in aquariums, aquaculture, plant breeding, pharmaceuticals, in laboratories, Quality assurance and service (e.g. osmosis plants) can be applied.This text