At Cardiff and Newport 24 Hour Locksmith, we usually install Card door entry systems in larger business, hotels, retail environments and sports clubs in the Cardiff region. Staff & authorized workforce need to access several different doors inside an organization. The cards can be programmed to let staff have access to some specific areas instead of all. This is why it’s mostly a commercial product & would hardly be employed in a domestic setting. This sort of entry system is usually PC driven so that a record can be kept of which personnel have opened which doors & when they did so.