Product details:

With the push of a button, these Classic Instruments Sky Drive GPS speedometer sensors can program your vehicle's speedometer from the convenience of your garage to read in miles per hour, kilometers per hour, or knots. They feature an omnidirectional antenna that gives you added mounting choices! They are designed to work with any Classic Instruments or other manufacturer's speedometer. The Classic Instruments Sky Drive GPS speedometer sensors include two additional wires, giving you additional features and benefits. One wire gives you an extra speed signal for cruise control, and another wire can activate a relay or light which does a variety of things, such as locking your doors or turning on a warning light at a predetermined speed. Uses GPS triangulation to calculate speed - Works with all electronic speedometers - Cruise control capability built in - Relay trigger wire built-in for additional features such as speed timed door locks or speed indicator lights - GPS Speedometer Sensors with Cruise Installation and Wiring - Learn more about Sky - Drive GPS by reading Rod & Custom Magazine's tech article; Classic Instruments Sky - Drive Speedometer.