Technology to keep well-being The ADT Caps Customer Center provided by SK Shields is a service that provides security information and contract information anytime, anywhere through a smartphone to customers using the ADT Caps security service.> Main Features- Real-time security status check- Expense release history inquiry (Send e-mail and fax)- Search and edit the emergency contact network of the guard station- View contract information and billing information- Reissue of tax invoice email# Service inquiry: 1588-6400