In the first mode, the sensor activation starts a 20 second timer displayed on screen while visually instructing how to wash hands properly. After this time, positive feedback is given with a simple and friendly character to tell that washing has been done properly.
If proximity continues to be sensed, the display will notify excessive water usage, if it stops sensing the proximity before the 20 seconds pass, the timer will continue briefly but will eventually provide “sad feedback” if there is absolutely no proximity.
The second mode is manually activated with a rotating wheel that allows to set a personal time goal and can be applied for other functions such as teeth brushing or showering.