... . RFID capacity: 30000,2. logs capacity: 50000,3. Communication: RS232/485,TCP/IP,U-Disk,weigan in/out,4. Verification mode ... enable Master/Slaver access control .6. Embedded webserver: support browser to inquire access data at local or remote .7. No LCD ... no keypad enhance the functions of waterproof and dustproof . RS232/485 TCP/IP RFID Access Control BTS-SCR100