This energy saver switch can be used on TThotel system only.
When guest get in the room, put the card inside the switch, then the room will get power.
When the guest get out the room, they take out the cards, then the room will power off. In this way, the hotel can save much electricity.
It has three working mode:
1) Any card mode: any card can be used to get power.
2) Hotel card mode: only the hotel card can be used to get power. The card has been encrypted.
3) Room card mode: only the matched room card can be used to get power. It can prevent the abuse of electricity by cleaning staff。