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Product Features:
The Hotel Key Card Switch is self-powered and the simple act of inserting or removing the card generates enough energy to send a wireless signal to wireless receivers within the room. To operate the switch, guests simply insert their key card in the slot when they enter the room and then remove it when they leave.
Wireless and Self-powered, eliminating the need for additional wiring and batteries.Easy installation, easy maintenance. installation is quick and easy, and operating costs can be reducedAccommodate any standard hotel key card.No battery, no wire.868MHz Hotel Key Card Switch