Autometer Stack Instruments 10HZ Frequency Output w/ Module & Antenna GPS Ground Speed Kit - Black

This GPS antenna and module assembly converts GPS vehicle ground speed data into a digital frequency output suitable for connection to Stack display and data system inputs for monitoring a pulse type speed signal. Plug and Play with Stack ST81xx series speed inputs out of the box. Excellent solution for vehicles where conventional speed sensors are not available or for use on data systems seeking a reliable ground speed reference. Configurable frequency output for quick setup and calibration to your existing system parameters.
Installation Instructions