The pressure sensor of the electric toothbrush is an innovative feature that brings significant benefits when brushing your teeth. This sensor is designed to monitor the pressure you apply during brushing and then provide you with feedback. When you apply too much pressure to your teeth and gums with the toothbrush, the sensor will alert you to the excessive pressure, helping to protect your gums from too much friction and prevent damage. Conversely, if you don't press enough, the sensor can encourage you to increase the pressure for optimal cleaning.