Deling Car Top Sub Bell NKT12(1-1)B3 (XT5249B175) is mainly used to emit a prompt tone when the elevator reaches a designated floor, reminding passengers that the elevator has arrived at its destination. Typically installed on the top of the elevator car, this device helps passengers prepare for boarding or exiting the elevator in time, thereby improving elevator efficiency and user experience. For more information, please contact customer service.
