Auto Meter 1787 Old Tyme Black Electric Programmable Speedometer Traditional incandescent lighting illuminates around the perimeter of the dial Features lit LCD odometer - capable of registering one-million miles with two resettable trip odometers Compatible with most two wire sine wave and three wire hall effect vehicle speed sensors. Simple push button, 2 mile drive calibration. No dip switches! Reprogram at any time to accommodate changes in gear ratio or wheel and tire combination.