Operation mode LCD display, stepper motor. Input signal 287.422.4 ohms. 6 gauge set 52mm gps speedometer tachometer &52mm fuel oil press temp volt gauge using stepper motor drive pointer, accurate display of the engine speed, and with the lcd display clear display mileage. Total Mileage Adjustable, Mileage Range 0-999999 (Mi, NMI, KM available).