The indicator changes color depending on the robot's operating mode: cleaning, waiting, charging, error, and others. This helps the operator to instantly understand what is happening with the device.
The indicator bar shows the level of clean water in the tank, which is important for wet cleaning robots. The user can see when water needs to be refilled so that cleaning is not interrupted.
The indicator also displays the battery level, allowing you to monitor the remaining operating time and recharge the robot in time.