Daily Archives: April 29, 2019

Energy Saver Key Card Switch Introduction

NFC BlogBy admin April 29, 2019

Energy saver key card switch is specially designed for the energy-saving products of hotel rooms. It uses the proximity card to take power (the sensor card usually uses T5557 card, Mifare-1 card, EM card, etc.). When the hotel guest enters the room, it will sense when the card is inserted into the special energy saver…

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