Established in 1999, ShenZhen Wiegand Industrial Co.,Ltd specializes in development and manufacture of access control systems. Wiegand products are geared to all needs, from the office buildings, housing estates to multiple-site high tech corporations, universities, banks, police stations and prisions etc. Our products include: RS485 network single-door access controller, RS485 network multi-door (2 doors and 4 doors) access controller;TCP/IP network single-door access controller, TCP/IP network multi-door (2 doors and 4 doors) access controller; access control software; access control and time attendance administration system; RS485/232 access control converter; RF IC and ID card reader etc.