Stack GPS Ground Speed Module

Auto Meter GPS speedometer interface module converts GPS vehicle ground speed data into digital frequency output. Easy to use plug and play system that is compatible with Stack ST81 series dash displays.One touch on-button followed by 10-second calibrationGreat solution for vehicles where conventional speed sensors are not availableIP67 construction which is fully sealed against water and dustThe interface module can turn any electronic speedometer into a GPS speedometer with just the push of a button.