?Support 1000 users??for one entrance door, support 1000 users with control unit and keypad input. Easy to install, easy to use, supporting management card, easy to manage, stable performance. Or Suppor for??It can meet various automatic office spaces, industrial and mining enterprises, government agencies, smart communities, telecommunications base stations and other public access access control systems. ?Support external Wiegand??waterproof metal touch access controller with Wiegand output/input, multi-function device, support external Wiegand reader or access card reader., Weight: 0.84 Pounds