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DER EE Electrical Instrument - is an ISO-9001:2008 certified professional manufacturer, and distribution of meter, meter accessory & electronic test & measurement instruments since its founding in July 1981. DER EE, located in Taipei, Taiwan, is characterized by high quality, high perfromance, best services and competitive prices. DER EE offers the variety of analog meters designed for the measurement, indication of power and energy consumption and audio application. And the extension of relative products such as DC ammeter current shunt, Current transfromer, and Hall Effect current sensor & Split-core current transfromer are jointed into the supply gradually. Hence, the range is expanded into the digital meter such as clamp-on meter, multimeter, light meter, thermometer, thermo-hygrometer, sound level meter & EMF (electromagnetic field) tester as well as T&M instrument (CE or UL approved) for electronic and environmental use complied. Nowadays, DER EE dedicates to offer safety, use-friendly and environmental-friendly products to meet ROHS compliance.