This product is designed to automatic control of motor, which ensures constant reserve of water in storage tanks. Automatic water level controller is used to automatically fill the over head tank as and when it gets empty and monitor the water level in it. Automatic water level controller switches ON the motor when the water level in the overhead tank drops below prefixed low level (on point) and puts off the motor when water level rises up to prefixed high level (off point) motor also switches off when the sump water is exhausted before filling overhead tank, pump running dry. State of the art, digital technology, advanced microcontroller based products.