Get an accurate indication of your speed with Stack electric speedometers. These 80mm speed indicators are fully user-programmable; their simple wiring connections and easy-to-use push button programming make your installation and calibration a snap. Stack speedometers feature LED-illuminated needles for maximum visibility, plus a back-lit odometer and two resettable trip meter displays are included. Matching Stack's range of Professional and Pro-Control gauges, their electric speedometers are also compatible with most OEM vehicle speed sensors and aftermarket speed pulse generators. For world-class accuracy in electric speedometers and gauges, you need Stack Gauges.