car operational panel(elevator control),elevator lift,buy elevator ELEVATOR CAR OPERATIONAL PANEL HK2000-B2 Service floor:≤24 floors Base function: 1.service the call button signal registered and conveied and the feedback of instruction that elevator control mainboard accept 2.Display real-time location of elevator floor and prompt destination. 3.Control the light and electric fan which switch on or off in the elevator cab. 4.Carry out the base function(transmit the single).For example :over load ,full load ,empty,driver ,open or close button and so on.