The controller monitors both underground and overhead tanks using level sensors. The input is fed to a control panel which starts the pump whenever water is available in the underground tank and the overhead tank needs to be filled. The controller also stops the pump if the underground tank runs out of water or the overhead tank is filled. The motor will also switch off when the sump water is exhausted before it fills the overhead tank or if the pump is running dry as well as maintaining voltage fluctuations. Automatic water level controllers switch the motor on whenever the water level drops below a certain level and shuts the motor off when the water rises well above the fixed level. The automatic water level control device is capable of controlling the functions of the motor and helps to reduce power consumption. It also protects the motor from running dry and thus ensures durability. One of the main advantages of water level control devices includes the ability to control the power fluctuations when the motor is switched on. Most of these devices ensure an uninterrupted water supply by filling the overhead tank, once it is below a certain level. The motor power is switched on when the overhead tank becomes empty and switches off automatically when the underground tank is empty or the overhead tank becomes full.