Tickets are no fun. Calibrating a speedometer isn't a great deal of fun either. AutoMeter's Electronic Programmable Speedometer makes short work of both, providing an easy to install and easy to calibrate solution that will help keep your speed exactly where it needs to be. Compatible with most factory speed senders, you'll wonder why you ever struggled with a speedometer before. Calibration is as simple as a two mile drive, or for even easier operation, AutoMeter's GPS Speedometer Sender is a simple plug and play solution for any application.Features: Modern white LED through-the-dial lighting provides clear visibility during nighttime use 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. Gauge kit includes mounting hardware and detailed instructions for installation Product Description: 3-3/8" Speedometer, 0-160 MPH, Sport-Comp IiPit Stop USA offers Auto Meter Sport-Comp II Programmable Speedometer - 3-3/8 in. 3688 at low everyday prices. Be sure to check out all our products from Auto Meter including Auto Meter Electric Speedometers.