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.
10X more detail
Collecting data at 10 times a second, the Protern.io Sensor provides 10X more precision than a sport watch and 20-50X more than a phone.
Weighing only 35 grams, it won't impact your performance. In fact, you will probably forget you have it on.
Using the latest GPS technology, the Protern.io sensor provides speed accurate to 0.5km/h and time accuracy up to 0.04s.
Fast access to data
Sync via Bluetooth with the Protern.io Sync App for instant access to your data, or upload via the USB at the end of the day.
Satellite constellations: GPS, Galileo, BeiDou, GLONASS
Concurrent satellite connections: 72
Measurement frequency: 10 hz
Speed accuracy: 0.5 km/h
Relative position: 30cm
Size and Weight
Weight: 35 grams (1.2 ounces)
Size: 65 x 35 x 15 mm (2.5 x 1.4 x 0.6 inches)
Battery and Recording
Battery: 6 hours of recording
Charging: 1 hour via USB
Internal memory: 350 hours of data