Shanghai Weigang Electronic Technology Co. Ltd. is a supplier of professional access control system and equipment, is the only authorized distributor in Shanghai with Shenzhen wiegand Co. Ltd. Access control products are: Single-Door RS485 Network Access Control Panel, two-Door RS485 Network Access Control Panel, Four-Door RS485 Network Access Control Panel , Single-door TCP/IP Network Access Control Pane, Two-door TCP/IP Network Access Control Panel , Four-door TCP/IP Network Access Control Panel, the management software of Access Control system, the management software of Access Control card , RS485/232 communication converter with access control, access control-specific radio frequency inductive non-contact IC card reader and so on. And distribution of access control systems commonly used accessories, such as electric lock, magnetic lock, electromagnetic lock.