What is a key card switch?
Key card switch, also known as energy saving switch, power switch, power saving switch. Mainly used in hotels and guesthouses. To solve the vacant state, cut off the power of the room. So as to achieve electricity safety and energy saving.
Generally, the key card power switch is composed of three parts: the high and low voltage power conversion part, the identification card part and the output part. Among them, there are many ways to convert the power supply, such as switching power supply type, resistance-capacitance step-down type, transformer type and so on.
Boonlive has various kinds of key card switch for hotel, the communication way can be RS485 Modbus, KNX, Zigbee, Zwave, I/O, dry contact, mechanic and any other normal switch. Besides, we also produce other smart switch for hotel to control lights, TV, air conditioning, curtain, etc
https://www.actopsmarts.com/key-card-power-switch/