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Contact Information

Residential Sales: (800) 244-2261

Security Instrument provides home security & automation systems, installation and support in Delaware, Pennsylvania, Maryland and New Jersey.


Wilmington, DE Office
309 West Newport Pike
Wilmington, DE 19804
Phone: (302) 633-5621

Milton, DE Office

28340 Lewes Georgetown Hwy.
Milton, DE 19968
Phone: (302) 645-2212

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