GPS-08

AiM GPS 08 Module, 1.3m cord length. 

Now, thanks to GPS08 Module and Race Studio 3 software, as soon as you start your track session you can immediately
sample lap and split times as well as speed, position
and acceleration... all the information needed
for engine tuning as well as for improving 
your driving technique. 

GPS08 is more precise than most of the existing GPS systems.