The AIM Solo2 provides all the essential functions needed for track days.
Using WiFi, you can upload track coordinates directly to the device or transfer recorded data to your PC for analysis.
In addition to its internal battery, it can also be powered via a 12V connection.
Key Features:
Lap times with up to 5 split times
Triaxial accelerometer
Rechargeable lithium battery
4 GB memory
Integrated GPS module
Multiple modes
???? More info: AIM Solo 2 Product Page