my M3 CSL

[Clubber]

Originally Posted by alexk

clubber > It is the RaceChrono Pro. I am using it since years with a bluetooth 10Hz receiver (Qstarz BT818X).
I was condidering to get the racelogic 20Hz BT unit but the position accuracy is worse than the one I currently have.

I just realized it is for androids. I use an iPhone 6 with my Harry's Lap timer app, although having difficulty overlaying OBD info. Which obd reader do you use ?