Features Autometers E-Z View Digital Led Display System Which Maximizes Readability And Minimizes Distracting High Speed Digit Changes. Programmable with EZ Cal System - MPH or KM/H. Tachometer is compatible with 0.5 - 6 pulse ignition signals (1-12 cylinder engines) with points electronic and most 12V high-performance racing ignitions.. Gauge kit includes mounting hardware and installation instructions. Resettable Trip Odometer. Speedometer is compatible with most two wire sine wave and three wire hall effect vehicle speed sensors.. Speedometer can be easily calibrated using the trip reset button on the from of the unit and a premeasured two mile distance.. No dip switches!