the speed is set by calibrating gear ratio and tire size per mile. you drive one mile stop and push a button. a little inprecise, i measured the course with my new car. speed does not factor in. i was hoping to run across one of those speed signs no around here. ron


Ron, The Computer Greek
I love therefore I am.
1954 3100 Chevy truck
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2017 Buick Encore
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1960 MGA Roadster Sold 7/18/2017