United Electronic Industries, a U.S. based data acquisition hardware manufacturer.
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Unidad Especial de Intervención (Special Intervention Unit, UEI), the emergency response unit of the Spanish Guardia Civil.
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UEI College, a career education school located in California.
United Electronic Industries or UEI, based in Walpole, MA, is a producer of advanced data acquisition hardware for the PCI, ISA, and PXI bus types, as well as their proprietary, award-winning Ethernet-distributed PowerDNA system.