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        (301) 694-9601Call
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        Map & DirectionsDirections5716 Industry LnFrederick, MD 21704Write a ReviewWrite Review

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        General Info
        System Engineering International (SEI) engineers, manufactures and markets a complete line of uninterruptible DC UPS's and battery systems. It offers its products for use in communications, industrial and military applications, as well as Digital Centrex (ISDN), Voice over Internet Protocol (VoIP) midspan power injectors for power over Ethernet. The company also manufactures integrated services digital network (ISDN) network termination units (NT1's) and ISDN terminals. System Engineering Internationals (SEI) Power Services Division installs, maintains and services a full range of critical (uninterruptible) power systems.
        Extra Phones

        Fax: (301) 694-9608

        TollFree: (800) 765-4734

        Categories
        General Contractor Engineers, Civil Engineers, Professional Engineers

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        Details

        Phone: (301) 694-9601

        Address: 5716 Industry Ln, Frederick, MD 21704

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