Can I set a dual card to open the door for ID hotel locks?

No, because the computer can only be used twice at the same time after setting the password, once for the room door lock and once for the electronic key. The password on the computer will automatically become another password after being used twice. If you can't open the door, you have to go to the service desk to reset it and change the room password and key at the same time. In some foreign hotels, this password key is disposable, that is, it is given to customers as a souvenir. You can't open your room after you take it.

But the floor cleaner has a master electronic key that can open every room on this floor. Not affected by computer password modification. This is set separately.