Secure Technology Solutions Ltd (STSL)Secure Technology Solutions Ltd (STSL) is a UK business, based near Dartford in Kent supporting customers across UK and Europe since 2013. We are a leading security technology specialist in the design, manufacture, and deployment of wireless locking solutions for intelligent lockers, key management systems, mobile apps and self-service identity management solutions. Our workflow engine and kiosk hardware can be configured to meet a variety of different business requirements. STSL is a OEM supplier of HID readers & credentials, Electronic Key Management and Intelligent Locker Solutions. Our knowledge and expertise makes us a valuable resource for customers and consultants alike. A focus on innovative and technology driven security products ensures the best possible service and support for those looking for a quality integrated security solution.