Protern.io Sensor is for sports that demand the most accurate speed, time and position data. Alpine Skiing and Ski Cross athletes are some of the most popular users of the Protern.io Sensor.
A subscription to Protern.io is required to download the data and analyze the results.
Protern.io's high speed high-accuracy GPS sensor records accurate time and speed data 10 times a second. Weighing only 35 grams and lasting 6 hours on a single charge, this sensor gets the job done. We recommend one sensor for every athlete.