Welcome to First Detection Systems

First Detection Systems, Inc., is an Authorized ADT Alarm Dealer, servicing New Jersey (NJ), New York (NY), Connecticut (CT), Florida (FL) and Illinois (IL). Get your free wireless home security system with ADT alarm monitoring today and find out why ADT Security is #1. The security of you, our loyal customer, is our first priority! We are the #1 provider of home security, office security, and business security.

• Why You Should Choose Us
• Home and Home Office Security
• Business Security