Autometer Elite Digital Programmable Electric Speedometers Offer The Precision Of Digital With The Visual Representation Of Change Typically Found In An Analog Gauge. Matched To Autometers Most Popular Gauge Designs This Product Can Be Easily Calibrated Over A Driven Two Mile Distance To Match Most Vehicle Speed Sensors Producing An Output Between 500 And 400,000 Pulses Per Mile. Includes Multi-Function Odometer With Dual Resettable Trip Readings And Acceleration And Braking Performance Tests. High Peak Speed Memory Recall. User Selectable Unit Display (Km/H Or Mph).