Enterprise-class, feature-rich S2 access control systems integrate credential-based access control, intrusion detection and video applications for a unified management and administration experience. 100% web based, the systems require no software installation or client license fees. Flexible system architecture allows for a range of applications from single sites to globally distributed physical security management systems. S2 access control systems also integrate with legacy access control systems, allowing for easy upgrades. https://s2sys.com/products/