... password and guest password management electronic hotel safes Used for Hotel, Bank,Home,Laptop electronic hotel safes ... electronic hotel safes Functional and Technical Index:Power Supply : DC6v, use of 4 pieces ... 5mm, Wall 2mmSpecification:6600series (applicable to notebook computer): Height 200mm, Width 400mm, Depth 370mm, ... Modification of User Code:Push the green button at inner side of the door , ...