We all have water tanks in our homes which stores water required for various purposes. But on many occasions while filling the water tank we forget to stop it which leads to overflow of water and wastage of water. If we knew about the level at which the water is present inside the tank while filling it then we may avoid the overflow of water. For this I have a design of “WATER LEVEL INDICATOR” by which one can know the level at which water is stored inside the tank.