AutoMeter Electronic Speedometer Electronic 2-5/8 instruments from Auto Meter have a chrome bezel and with a unique back-lit dial and lighted LED pointer. The numbers illuminate in Cobalt blue at night. Features Features Hi-Def through-the-dial blue LED lighting with LED lit pointer Easy push-button calibration can be done while driving - requires predetermined 2-mile distance - speedometer remembers calibration so there's no need to recalibrate unless tire size/gear ratio/speed sensor changes 5289 GPS Speedometer Interface Module available separately - works with all AutoMeter electronic speedometers and requires no additional calibration regardless of changing tire size/gear ratio Features lit LCD odometer - capable of registering one-million miles with resettable trip odometer Compatible with most OEM/Aftermarket two wire sine wave and three wire square wave speed sensors Vibration and water-resistant