This Model Shows level Indication in digital 10%, 20%, 30%, 40% 50%, 60%, 70%, 80%, 90%, 100%. As usual if the water in the OVER HEAD TANK comes below 20% continuous alarm comes & if the water reaches 100% in the OVER HEAD TANK continuous alarm comes. Manually we have to switch ON & switch OFF the motor at that time. To switch off the Alarm press soft touch button.