SC103 is an access control devices produced by ZKSoftware, which is made with elegant design and professional surface treatment. The device have lock control, alarm, exit button, door sensor. The wiegand-in interface is used to connect external reader to construct master and slave system . Also the device can be used to connect with a control panel as a reader by wiegand-out interface. The operation can be done on the device through LCD display,also can be done on PC software and upload to the device through TCP/IP, RS232/485 communication. The USB-host is used for data download and upload, includ ing user template and record etc. SC103 is suitable for house, small office and factory etc .