1. Support Centre
  2. Protern.io Sensor

First time using the Protern.io Sensor

All the basics for using the Protern.io Sensor, including how to turn it on on the sensor, getting a satellite lock, and turning off and charging the sensor.

Turning on the Protern.io Sensor

  1. Press the power button for one second.
  2. The LED will turn blue, then start to flash green.
  3. The flashing green means the sensor is looking for satellites.

Label your sensors

Avoid any mix ups when you collect and upload data by putting your name or your athlete's name on the sensor.

Connecting to the satellites

The Protern.io Sensor is a GNSS (Global Navigation Satellite System - formal name for GPS) sensor. Before it can record any data, it will need some time to get signals from multiple satellites. 

  1. To connect to the GPS satellites, the sensor should be on and outside with a clear view of the sky.
  2. The LED will slowly flash green while it is looking for satellites.
  3. The green LED will flash quickly when it is receiving signals from enough satellites to start recording data. This can take 30 seconds to a few minutes. 

Tip: For the most accurate data, ensure the sensor has an unobstructed view of the sky for at least 5 minutes before a timed run. This can be on the athlete in their Protern.io Gilet.

Turning off the Protern.io Sensor

  1. To turn off the Protern.io Sensor, press the power button three times.

Charging the Protern.io Sensor

  1. Plug the USB-C cable into the sensor and a standard USB charger, or computer, to charge the sensor.
  2. The LED will flash blue while it is charging. It takes about an hour to fully charge.
  3. When the sensor is fully charged, the blue LED will remain on.

Note: The Protern.io Sensor will last approximately 6 hours from a full charge.