Hotel guests like to leave the air conditioner on and the windows open. In order to save energy, how to open the window and automatically turn off the indoor air conditioner?

FDY-H20 18QDM door magnetic air conditioner intelligent switch is an intelligent, beautiful, low-power and economical air conditioner intelligent switch. Suitable for all brands of infrared remote control air conditioners. Using wireless door magnetic connection mode, the wiring is convenient. It can open the door magnet for more than a certain time without connecting to the external network. When the door magnet is always on, turn off the air conditioner every once in a while, which is effective in saving energy.