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Protern Pack

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Everything you need to get started with Protern.io with Alpine Skiing.

Season+ and 2 Year Pro Passes are valid from now to May 31, 2025 and May 31, 2026 respectively. This means you can collect data while you are in top form and use it to set benchmarks for your late season and glacier training.

What's Included:

  • Protern Sensor
  • USB charging cable
  • Bib that holds the sensor in place while training
  • Protern.io Pass
  • Carrying bag


    An active Protern.io Pass is required to access you and sync your data. 

    Questions about shipping, sensors, passes? Check out our Frequently Asked Questions, or contact support@protern.io.

    The bib is designed to fit tightly over a race, or under, a race suit. Keeping the sensor from moving around gives you the most accurate result.

    Because the bib stretchy, there is a fair bit of overlap in the chest sizes. Consider sizing up if you will be wearing the bib over a back protector, or potentially over a vest or ski jacket. 

    Why do I have to pay for a pass?

    We are constantly working to make Protern better for you.

    The Protern Pass enables us to invest and deliver to you new features like video syncing, acceleration data, detailed turn metrics, to name a few. 

    We get it that paying a fee each season is not ideal, but our promise to you is that all the benefits you get out of Protern today will only get better next month. 

    Which pass should I get?

    Monthly passes are great for athletes who are looking to get Protern and want to keep the initial cost as low as possible. Monthly is also helpful if you are buying Protern near the end of your season. 

    Season Pass start November 1 and go to April 30. This will cover most of the northern hemisphere ski season for athletes who don't go to camps in the spring and summer.

    Season+ Pass covers the entire season to the May 31, giving athletes the flexibility to use Protern at glacier camps in the summer and spring training. 

    Pro Pass with Protern Protection covers two full years to May 31. If you are in the sport for the long haul, this is a way to save a bit money. It also comes with Protern Protection included, allowing you to pause your Protern.io Pass once for up to 12 months if you get injured or can't train for the season. 


    How it works

    Turn on your sensor

    Simply turn on your sensor it will record up to 5,000 data points per run

    Sync on mobile

    Upload your performance data using the Protern Sync App available for iPhone, iPad and Android

    Analyze runs

    Use your Protern.io account to review and analyze your performance

    Technical specifications

    • Accuracy

      Collect speed data accurate to 0.18 km/h, time to 0.04s and line data to 1.5m for absolute and 30cm for relative positioning.

    • Communication

      Upload your training data using Bluetooth via the Protern Sync app for iOS and Android. Alternatively, you can upload data via USB using Google Chrome.

    • Battery Life and Charging

      Collect data all day with 6 hour battery life. Plug the USB-C cord for an hour to fully charge the sensor.

    • Analysis

      Protern.io makes analyzing the 5,000 data points collected per run easy. Find out where you can get faster.