The belt should fit comfortably around the player's chest. Not too tight that it causes discomfort or restricts breathing, and not too loose that it falls down the player's waist when they start running.

The belt should on the chest (about level with the sternum) and underneath the t-shirt so that it is making skin contact. The "Movesense" name should be clearly visible in the center of the chest facing outwards (upside down to the player).

The Beyond Pulse sensor then fits on top of this with both metal pins firmly clipping in to the belt.