Harris Security Consultant Inc fined a new Intercom .Here is the Detailed deseription : Max User Capacity 800 Fingerprint Capacity 800 Transaction Capacity 50,000 Language English / Spanish/Portuguese/ German (could customize others) Push Technology (UDP) Device Pushes real-time attendance record to the RAMS Software automatically, including the offline records. Display 2.4inch TFT Screen Fingerprint Sensor 500DPI (Optical) Communication TCP/IP, RS485, USB Memory Disk Authentication Method Fingerprint/ RFID Card (125Khz) Bell Built-in Timing Bell (Scheduled-bell, can connect to external timing bell) Access Control Interface Wiegand26/34, Door Lock, Siren, Release Button, Doorbell, Door Sensor Professional access function Open door by multilevel verification, anti-pass back Power