power saver, energy saving switch

energy-saving switch is a special switch for supporting electronic locks in hotels. After customer opens the lock with card and puts the card in the switch. the power supply in the room can be put through. When customer leaves the roon and removes the car. the energy-saving switch will delay about 15 seconds. then cut off the power supply. so as to ensure safety and energy conservation. All the switches can only use the same hotel's card to get power

power saver, energy saving switch