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How To Use

The beauty of the Brain Sentry system is in its simplicity.

Our focus is every kid and every helmet.  Our development team took significant efforts in designing a system that accurately measures appropriate impact forces, is affordable, is safe, and does not burden the volunteer heroes that run youth sports leagues.  There is nothing to maintain.  Batteries don’t require recharging.  Nothing to remember to turn on or off.  Brain Sentry sensors just work all season.  Period.

At the beginning of the season simply activate the sensor and peel and stick it to the back of each helmet.  The sophisitcated battery life management system allows the sensor to never need to be turned on or off.  The battery never needs to be charged or changed.  The sensor is fully sealed and waterproof.  At the end of the season it can be simply removed and returned to Brain Sentry for recycling.  We then send your team new sensors for next season.


  • When the helmet is not in use the sensor will automatically enter a sleep mode.  When it detects motion it becomes active and a green LED light will blink.
  • In the event of a big acceleration of the head, a bright red LED will turn on and blink once every 3 seconds.
  • Once the sensor flashes a red light, the player should be taken off the field and examined using the team’s protocol for concussion assessment for the possibility of a head injury prior to returning to play.
  • If the player is not injured, the coach or other designated adult simply resets the sensor to turn off the blinking red light.  The player’s helmet should be checked for proper fit and the player can return to the game.  It’s that simple.
  • The memory in the sensor keeps track of impacts and time between impacts.  If, within 30 days of the first alert, a second big impact is detected, the red light will flash quickly twice every 3 seconds.

NOTE:  The sensor is not a brain injury detector.  No sensor can diagnose a concussion.  The sensor is an impact detector that is carefully calibrated to alert when the brain may have been subjected to a force high enough that results in injury.