Use Instructions
14 
IMM OPERATION 
The impact monitor is always on and active whenever it is charged. There is no preparation required 
after removing it from the charger. Simply wear it in your mouth like a normal mouthguard, and 
monitor measurements with the Prevent Team App. 
SYNCING BEFORE AND AFTER USE 
For best data results, the IMMs should be synced often with an iOS device. This is done by simply 
ensuring that the app is open on an iOS in proximity to the IMMs. It is especially important that all 
devices are synced before use as close to the beginning of the use event as possible. This allows the 
IMMs to have the correct time of day, so that the app can most accurately display the correct time 
of the impact event. 
It is also important to ensure that the app is synced with the IMMs after use. Again, this is achieved 
by opening the app on an iOS device in proximity to the IMMs. 
FUNCTIONALITY CHECK 
Before use, the IMMs should be checked for functionality. About 15 seconds after being removed 
from the charger, the IMM should blink green for 15 seconds. Please note, this will only occur when 
the IMM is taken off active charging, so the charger case must be lit green when removed (not 
white). If this does not occur, ensure that the IMMs have been charged at least 70 mins.  
While viewing the team page in the team app, ensure that all monitors are displaying that they are 
actively connected to the app via BLE. This ensures that the monitors are charged, active, and 
functioning. If these checks are successful, the IMMs are ready for use. If not, please see the 
troubleshooting section. 
CONDITIONS FOR IMPACT DETECTION 
The Prevent IMM automatically detects whether an impact is a false positive, meaning that it is an 
impact measured by the mouthguard that does not exhibit the characteristics of a head impact. 










