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Hello! The pressure sensor will beep if the pressure is too hard on your teeth from the Philips Sonicare 4100 Protective clean.
Sorry, there was a problem. Please try again later.The brush slows down and the sound changes.
Sorry, there was a problem. Please try again later.No light but its gives a distant vibration pattern to alert you of pressure
Sorry, there was a problem. Please try again later.If you brush too vigorously the pressure sensor will adjust the level of vibration. The change is immediately noticeable and obvious and there's no light involved. You can disable the pressure sensor if you like as per the included instructions. Hope that helps.
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