Security Instrument Corp.

28340 Lewes Georgetown Hwy.
Milton, DE 19968

(800) 244-2261


Founded in 1960, Security Instrument Corporation, a privately held U.S. Corporation, provides electronic security and life safety detection and associated monitoring and support services. Security Instrument offers a full line of services from professionally engineered system designs and turnkey installation services, to 24 hour system monitoring. Security Instrument is Delaware’s largest full-service independently-owned security and fire company, serving thousands of customers throughout Delaware, MD, NJ & PA.


Contact Chamber

Phone 302-645-8073
Toll-Free 877-465-3937

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Chamber Hours of Operation

Year Round
M-F 10am - 4pm
Memorial Day thru Sept. 30th
Saturday 9am - 3pm
Sunday 10am - 2pm