55 Broadway; Cambridge, MA 02142

A -- SECURITY SYSTEMS POC Point of Contact -- Carol A. Ferrante, Contracting Officer, (617) 494-2421 CNT 98-D-00025 AMT $45000000 LINE NTE Amount for all five contracts DTD 071398 TO Scientech, 910 Clopper Road, Gaithersburg, MD 20878 WEB: Volpe Center Acquisition Division home page, http://www.volpe.dot.gov/procure/index.html. E-MAIL: Contracting Officer, ferrante@volpe.dot.gov. Posted 07/17/98 (D-SN224850). (0198)

Loren Data Corp. http://www.ld.com (SYN# 0465 19980721\A-0010.AWD)