The system keeps a complete record and knows the number of visitors as well as the floors they are visiting.It eliminates the faults and hassles of traditional pass such as personal information leak.

• 此系统不但纪录完整，可随时知道大楼目前访客人数及拜访楼层，并可避免传统换证件的弊病，例如个人资料洩漏等相关问题。