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Inventions made by Edward Weston during the late 1880s provided a foundation for electrical measurement and helped make today's electrical world possible. From 1886 to 1892, Weston invented portable, precision meters, the voltage standard cell, and the low-temperature-coefficient alloy manganin. Weston developed this alloy to use in measuring large currents and for use as a standard resistor. His inventions contributed to the development of electrical engineering and its spread throughout the world. This article surveys the development of electrical measuring instruments developed by Edward Weston.