General Info

Security Instrument is Delawareâ??s largest full-service independently-owned security company, serving thousands of customers throughout Delaware, MD, NJ & PA. We offer a full line of services from professionally business security system and turnkey installation services, to 24 hour system monitoring. Our clientele is diverse and includes homes, small retail, jewelry stores, education, financial, chemical, pharmaceutical, precious metals, manufacturing, and more. With Headquarters in Wilmington, Delaware, Security Instrument owns and operates itâ??s own state of the art UL listed Central Station delivering personalized, comprehensive, alarm monitoring, information, and support services 365 days a year, 24 hours a day.