The new Racepak V500SD Easy Access Data Loggers include all of the features and benefits of their successors, but now also include built-in pre-configured data analysis channels allowing you to make quick decisions based on real data between rounds at the track. The new Easy Access loggers no longer require the use of a security key, allowing you to look at your data with any laptop that has the latest version of Datalink installed. Out-of-the-Box, this system will data log: Engine RPM Drive Shaft RPM (Requires Driveshaft Collar Sold Separately) Accelerometer G-Meter Lateral G-Meter Battery Voltage List of Pre-configured data analysis math channels are included in the DataLink software: Engine vs. Driveshaft Ratio Clutch % Slip Clutch Slip Ratio Trans Ratio RR, LR, RF, LF Shock Velocity Average Air/Fuel Ratio Average Exhaust Gas Temperatures CC's Per Turn (for Fuel Flow) Track Time G-Meter MPH, G-Meter Distance (Feet) 60 ft, 330 ft, 660 ft, 1000 ft, 1320 ft Clock Markers