Originally Posted by
Johnnysplits
Exactly! There is no way to have accurate lap times if you gotta hit a button yourself while driving. You would have more accuracy if you had a friend with a lap timer on their phone. They SHOULD make a radio system that receives transponder signals.
Except that the transponder only emits a very weak signal as it is activated by the loop so you would need to be within a few feet to pick it up. (2 to 3 feet).