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SECURITY SYSTEMS

Precision Control Systems of Chicago

1980 University Ln.
Lisle, IL 60532
Telephone: 630-521-0234 Fax: 630-521-0556
www.pcsoc.com

Rex Electric & Technologies

200 W. Monroe, Ste. 1700
Chicago, IL  60606
Telephone:  312-251-3620     Fax:  312-443-1579
www.rexelectric.com

Schneider Electric

17475 Palmer Blvd.
Homewood, IL  60430
Telephone:  708-271-4700
www.schneider-electric.us/go/buildings