SPORTRACER
I have a Pro Trak and love the thing. I recently purchased it 7 months ago and have had a great time using it. It has too many features to list but I will tell you that with an optional cable, you can send cycling information to your computer and print out your results. You can monitor each cell which is a good thing, you can run in motors, you can temperature charge your batteries (with an optional temperature module. The list goes on and on. I have talked to Phil from Pro trak many times and he has answered every question that I have sent him. My hat's off to Pro trak and Phil of course. Hope this helps.