What Safety Features does the Smartlevel have?

Smartlevel is smart…. Should the water level exceed the Max level on the sensor and go onto the Alarm level? Then a buzzer will beep on and off and a light will flash until the level is reduced and the controller reset (By turning  Smartlevel on and off). Should the level go below the Min sensor level? Then again the buzzer will sound and Alarm light will flash. Minimum Alarm is usually because the refill is empty and needs refilling. Controller reset (By turning  Smartlevel on and off).