load moment indicator is a kind of Crane safety protection device , function as belows: 1)Alarm, in case of over load 2)Stop instantly in case of over load 3)Show Live Weight while in operation 4)Prevent overload 5)Crane Movement Control 6)Allows user to collect data in .txt format 7)Increase crane working life and life cycle Weite Technologies CO.,ltd is the china Top 3 OEM manufacturer of crane safety equipments (LMI systems ). Such as load moment indicator , crane computer , load sensor , angle sensor , anemometers , limit switch etc.