Intelligent Multifunctional controller, which combines access control and automation system in one universal device. This specially designed controller supports control of up to 4 doors with access control, 1-W port for communicating with DALLAS 1-W devices (optional : i-buttons, temperature and RH sensors, A/D convertors and so on....). Designed for buildings and premises with hi security level. Supports local and global antipassback function. mehr dazu