SpeedCoach® OC 2
    
The original on-the-water OC performance monitor, the SpeedCoach OC 2, offers athletes accurate, high contrast information about speed, cadence and glide in a completely waterproof package. Use with an impeller on moving water (OC 6), or switch to GPS mode for wireless splits and distances.
Add the Training Pack software to program any workout ahead of time, start and record training and race pieces "on the fly", and upload data wirelessly to a computer or mobile device for deeper insights over time.