Qiping Elevator Advertising Projector is a professional intelligent elevator projection advertising machine designed for elevator door opening and closing applications. It is strictly developed according to industrial standards, ensuring normal operation 24 hours a day, 365 days a year, with low failure rate and stable performance! By using magnetic induction or infrared induction+gravity induction, the elevator door can be opened, the projection screen can be closed, the elevator door can be closed, and the content can be automatically projected onto the elevator door for playback. It can also be turned on and off at regular intervals, connected to WIFI or 4G network, and remotely replaced with advertising content.